2019年mba考试英语模拟题——连词333

{01}One can fail at times, but _______ makes a difference is one’s attitude towards life. A.what B.which C.that D.where 解析：略
本题选A。
{02}_____we are not attacked by nuclear weapons, we promise that under no circumstances _____ use the
bomb first but we reserve the right to use it for counter-attack when necessary.
[      ] 
A.As long as; we shall
B.If; shall we
C.So long as ; shall we
D.Even if; we shall
解析：
本题选C。

{03}According to the report, this virus was never known, which had claimed countless lives, _____ it was
accidentally found by a doctor.
A.unless
B.since
C.so that
D.until
解析：
本题选D。