Scientists say that the Mars-500 days_______

Scientists say that the Mars-500 days_______

题目
Scientists say that the Mars-500 days_______
they perform the task during the real mission
-Good luck.I hope it goes well.
A. after B. before C. since D. as
请问为什么?另外,这句话怎么翻译?
答案
Scientists say that the Mars-500 days___B____they perform the task during the real mission
-Good luck.I hope it goes well.
A.after B.before C.since D.as
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.