正确答案: A
15分钟
题目:落水者在水温为0℃的情况下,只能维持生命约:
解析:A
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举一反三的答案和解析:
[单选题]Which of the following is NOT mentioned in this passage?
Bursting caps must be fitted
[单选题]排气口与扫气口分别设在气缸中心线相对两侧的缸套,其换气形式称为()
横流
[单选题]When the refrigeration demand is small,_______.
the expansion valve will move toward the closing position
[单选题]救生设备主要包括:
救生艇、救生筏、救生衣、救生圈