two satellites are monitored as they orbit the earth; satellite x is eight times as far from the earth's center as is satellite y. from kepler's third law one may conclude that the period or revolution of x is what factor times that of y?
果胶酶的主要作用：
浸渍发酵的浸渍控制方法主要有封闭式循环或倒罐、开放式循环或倒罐和压帽
杀球是羽毛球运动中球速最快的一种技术（ ）。
a面层中，宜采用()进行碾压。
封闭型基金不能在交易所上市，而是完全在场外市场进行。()
出境旅游领队境外服务主要包括（ ）。
which one of the following statements is true concerning the motion of an ideal projectile launched at an angle of 45°to the horizontal?
i admired my cte lisa very much. _______ her prettiness, she was art and helpful.
建筑施工总平面图设计的原则有（ ）。
the world of ideas and scholarship becomes our oyster, and the possibilities become almost unlimited, at least as large as all of human___ and achievement throughout history.
people have to _____noise pollution in big cities.
_________是指在分析、综合、对比的基础上推理演绎，从并列因素中作出最佳选择的思维方式。
扩散思维又被称为_________ 。
safety regulations were not strictly obeyed in the factory, so this tragedy didn't happen ______.