单选题：a material consists of particles with a certain composition, and can be （?） into products having shapes and colors.
多选题：科技英语语法的共性，包括
多选题：the four main aspects concerned in materials science and engineering are composition and structure, and
单选题：titanium has a density (r=4.51) between that of （?） and steel.
单选题：with the increase of temperature, the （?） of an ntc ceramic decreases.
多选题：the elements, chromium,（?）tantalum iron and niobium are all b stabilizers for titanium.
判断题：ptc ceramics have a high resistance at ordinary temperatures.
判断题：titanium alloys are virtually immune to air, marine, and a variety of industrial environments.
单选题：carbohydrate的意思是
单选题：the term specific strength means
单选题：in a solid solution, solute atoms substitute for lattice atoms. the type of this solid solution is
单选题：a silicon crystal doped with boron creates a p-type semiconductor. this doping is known as
单选题：ferroelectricity of donor-doped barium titanate ceramics is lost at a certain temperature, and this temperature is called
单选题：ptc ceramics have a （?） resistance at ordinary temperatures.
单选题：titanium alloys are virtually （?） to air, marine, and a variety of industrial environments.
多选题：why is titanium used in artificial replacement joints？
多选题：the temperature sensitive ceramics are
单选题：the central feature of crystalline structure is that it is regular and（?）.
单选题：in a glass, short-range order is retained, long-range order is（?）.
landfilling is the（?）desirable method of dealing with municipal solid waste.
单选题：in portland cement clinker, cao, sio2, al2o3 and fe2o3 react chemically with each other to form（?）at high temperatures.
单选题：（?）is a continuing plastic flow at a stress below the yield strength of a metal.
单选题：“impact strength”意思是
单选题：portland cement is made by heating a mixture of（?） and clay.
判断题：“fine materials” 意思是“优秀材料”。
单选题：the main disadvantage of c/c composites is their low ( ? ) resistance.
单选题：a life-cycle ysis (lca) is a technique to assess ( ? ) impacts associated with all the stages of a product’s life from-cradle-to-grave.
单选题：单词“set”用于水泥材料，指的是
单选题：a ( ? ) is an integral material to satisfy the user requirements, which are not attainable by the inidual constituents.
判断题：glass is obtained by cooling a melt slowly.
2.判断题：单词magnetorheological意思是“磁变体”。
单选题：单词homogeneity 的反义词是 ( ? )。
单选题：in polycrystalline ceramics, the resistance of ( ? ) is higher than that of grains.
多选题：the objectives of presentation to persuade are: ( ? )
what makes a good teacher?
a intentioanl teacher tends to believe her students will be productive and imaginative.
[ ] and correlational studies are two main research methods in educational psychology
[ ] belives that development is predetermined at birth, by heredity and biological factors, while [ ] believes that development is affected by experience and other environment.
theories of development based on the belief that human development progresses oothly and gradually from infancy to hood.
babies use patters of behavior called to learn about their world.
if you give infants all objects that they have never seen before but that resemble familior objects, they are likely to grasp them, bite them, and bang them. this is process of
children in have ability to deal with potential or hypothetical situation.
piaget's stages of cognitive development include:
children in preoperational stage can't understand the principle of conservation.
preoperational children are egocentric in their thinking.
when old ways of dealing with the world simply don't work, a child modify an existing scheme in light of new information or a new experience, a process called
all infants have inborn behaior called for which responses automatically.
refers to an object exists even if it is out of sight.
vygotsky called an ability to think and solve problems wothout the help of others.
refers to a child cannot yet accomplish alone but could with the assistance of more competent peers or s.
you can use information about vygotsky's zone of proximal development in organizing classroom activities in the following way:
scaffolding is all types of clues that allow the students to grow independently.
private speech refers to children's self-talk that guides their thinking and action and internalized as silent inner speech.
cooperative learning means children work together to help one another learn.
vygotsky believs that the development depends on the ， the symbols that cultures create them.
"your scratch my back, i will scratch yours" is a stage of [ ]
in pavlov’s classical conditioning, if a previously neutral stimulus (the ringing of a bell) is paired with an unconditional stimulus (meat), the neutral stimulus becomes a [ ]
food, water that satisfies a basic need, is a kind of [ ]
explain erikson’s stages of psychosocial development.
operant conditioning is the use of pleasant and unpleasant consequences to control the occurrence of behavior.
[ ] is an apparatus developed by skinner for observing animal behavior.
unpleasant consequences used to weaken behavior is call [ ]
[ ] receive large amount of information from each of the senses and hold it for no more than a couple of seconds
[ ] is a part of long-term memory that stores images of past personal experience.
pq4r method is [ ]
work memory capacity is [ ] to [ ] bits of information
in pavlov’s classical conditioning, if a previously neutral stimulus (the ringing of a bell) is paired with an unconditional stimulus (meat), the neutral stimulus becomes a [ ]
"your scratch my back, i will scratch yours" is a stage of [ ]
food, water that satisfies a basic need, is a kind of [ ]
vygotsky called an ability to think and solve problems wothout the help of others.
refers to a cognitive leval that a child cannot yet accomplish alone but could with the assistance of more competent peers or s.
in following strategies reflect cooperative learning except [ ].
in which of the following example is vygotsky's "zone of proximal development"
a teacher asks his students to figure out how to measure volume through experimentation. what type of learning strategy is he using?
why doesn't a teacher directly tell his students the results of the lesson ?
scaffolding, based on ( ) views, calls for teacher assistance to students at critical points in their learning.
[ ] receive large amount of information from each of the senses and hold it for no more than a couple of seconds
if you give infants all objects that they have never seen before but that resemble familior objects, they are likely to grasp them, bite them, and bang them. this is process of
babies use patters of behavior called to learn about their world.
[ ] belives that development is predetermined at birth, by heredity and biological factors, while [ ] believes that development is affected by experience and other environment.
children in have ability to deal with potential or hypothetical situation.
theories of development based on the belief that human development progresses oothly and gradually from infancy to hood.
what makes a good teacher?
explain erikson’s stages of psychosocial development.
you can use information about vygotsky's zone of proximal development in organizing classroom activities in the following way:
top-down processing means
creative problem solving requires:
pq4r method means [ ]
the methods that enhance intrinsic motivation have [ ]
the following principles can provide extrinsic incentives/motivation to learn:
a intentioanl teacher tends to believe her students will be productive and imaginative.
operant conditioning is the use of pleasant and unpleasant consequences to control the occurrence of behavior.
scaffolding is all types of clues that allow the students to grow independently.
private speech refers to children's self-talk that guides their thinking and action and internalized as silent inner speech.
cooperative learning means children work together to help one another learn.
preoperational children are egocentric in their thinking.
[ ] is an apparatus developed by skinner for observing animal behavior.
unpleasant consequences used to weaken behavior is call [ ]
vygotsky believs that the development depends on the ， the symbols that cultures create them.
in [ ] learning, all groups of students work together to help one another learn.
work memory capacity is 5 to [ ] bits of information
all infants have inborn behaior called for which responses automatically.
when old ways of dealing with the world simply don't work, a child modify an existing scheme in light of new information or a new experience, a process called
refers to an object exists even if it is out of sight.