They are determined to work out the task,difficult it is.A. howeverB. no matter whatC. no

发布时间：2020-08-17 12:03:24


They are determined to work out the task,    difficult it is.
A. however
B. no matter what
C. no matter what
D. whatever

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(答案→)A. however
B. no matter what
C. no matter what
D. whatever
解析：考查连词词义辨析。However=no matter how+adj./adv.
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