题目内容
（请给出正确答案）
[单选题]
Don't establish a cooperation relation with any company （) you have checked its background.
A.if
B.unless
C.when
D.though
查看答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.if
B.unless
C.when
D.though
如果结果不匹配，请 联系老师 获取答案
更多“Don't establish a cooperation …”相关的问题
A.No,I can't
B.Sorry,I can't help
C.Well,seafood don't suit
D.Thanks,but I don't like seafood
A.confuse
B.interrupt
C.exclaim
D.disturb
A. I can't say so.
B. I'm not sure so.
C. I don't know so.
D. I don't expect so.
