题目内容

周代乐官一般兼具哪三种职能?

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While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for ().

A. abandon ship
B. dismissal from drills
C. fire and emergency
D. man overboard

下丘脑-垂体束

道床应采用一级道砟,岔枕下应有不少于()mm厚度的清砟,砟肩宽度应不少于400mm,砟肩堆高由岔枕顶面往上100mm。

A. 100
B. 200
C. 300
D. 500

虽然是炎热的夜晚,默特尔的尸体还是裹了一条毯子又一条毯子()

A. 正确
B. 错误

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