问题
选择题
Worldwide markets get tighter and the pain only lasts longer ______ international cooperation is strengthened in no time.
A.because
B.if
C.unless
D.when
答案
答案:C
Worldwide markets get tighter and the pain only lasts longer ______ international cooperation is strengthened in no time.
A.because
B.if
C.unless
D.when
答案:C