搜题请搜索小程序“爱下问搜题”
问题
填空题
-1
2
=______．
答案
-1
2
=-1．
选择题
To show our respect, we usually have to take our gloves off _____ we are to shake hands with.
A. whichever
B. whenever
C. whoever
D. wherever
查看答案
判断题
基准孔的下偏差等于零。()
查看答案
