题目内容
"Don't go to Wuhan ________ it's really necessary," Zhong Nanshan, a famous expert said to the public. But he rushed to Wuhan by train to fight against the virus.
A.unless B.when C.since D.although
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题目内容
"Don't go to Wuhan ________ it's really necessary," Zhong Nanshan, a famous expert said to the public. But he rushed to Wuhan by train to fight against the virus.
A.unless B.when C.since D.although