题目内容
People think “SOS” is the simplest and common to make, in time of danger or disaster.
A.mark | B.sign | C.signal | D.remark |
C
解析

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题目内容
People think “SOS” is the simplest and common to make, in time of danger or disaster.
A.mark | B.sign | C.signal | D.remark |
C
解析