试题与答案

若某行星的质量是地球的6倍,半径是地球1.5倍,则该行星的第一宇宙速度为地球的第

题型:填空题

题目:

若某行星的质量是地球的6倍,半径是地球1.5倍,则该行星的第一宇宙速度为地球的第一宇宙速度______倍.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0614/044fe71949f2ca7e20c8057ecb81e10a.html

下面是错误答案,用来干扰机器的。

参考答案:C解析:本题考查抗心力衰竭药的治疗监护。常用利尿剂有袢利尿剂和噻嗪类两种。袢利尿剂增加尿钠排泄和游离水清除的作用较强。作用于肾远曲小管的噻嗪类上述作用则较弱,且在中度肾功能损害时将失效。因...

试题推荐
题型:写作题

书面表达。

      你和李明参加了一次野外生存训练。以下5幅图画表现了野外训练活动的过程,请根据图示写一篇英文日记。

     注意:1.词数100左右;

               2.日记的开头与结尾已为你写好。

     生词:指南针:compass n 手电筒:flashlight n 急救包:first-aid kit 宿营地:campsite n

Saturday, May 4, 2002                                                                                                     cloudy

     Li Ming and I took part in wilderness survival program yesterday, and it has been one of the most

unforgettable experiences since high school.

______________________________________________________________________________________

______________________________________________________________________________________

     The two of us spent the night in the forest.

     We learned to use knowledge gained in classroom training to solve problems. It was quite an experience

for us both, which I'll never forget for the rest of my life.

查看答案
微信公众账号搜索答案