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【单选题】
锚泊中值班驾驶员的职责包括:1出现危险局面时,应报告船长并果断的采取一切有效措施,以避免或减少损失;2如情况许可,要经常利用固定航标校核船舶是否保持在锚位上;3锚抛下时应立即测定船位,并在海图上标出锚位和回旋范围。
A.
1、2
B.
1~3
C.
1、3
D.
2、3
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参考答案:
举一反三
【单选题】下列哪一项是细菌细胞壁的主要成分:
A.
磷壁酸
B.
外膜层
C.
脂多糖
D.
肽聚糖
【单选题】确定单根V带许用功率P0的前提条件是( )。
A.
保证带不打滑
B.
保证带不打滑,不弹性滑动
C.
保证带不打滑,不疲劳破坏
D.
保证带不疲劳破坏
【单选题】听力原文:M:I am told that there is something wrong with your video camera? Let me see what's the matter. W: Oh, I went to the shop and had them replace it with a new one yesterday afternoon. What did the ...
A.
She went to the shop.
B.
She returned it to the shop.
C.
She had it changed.
D.
She replaced it with a new one.
【单选题】5-16.确定单根 V 带许用功率 P0 的前提条件是 。
A.
保证带 不 打滑
B.
保证带 不 打滑,不弹性滑动
C.
保证带 不 打滑,不疲劳破坏
D.
保证带 不 疲劳破坏
【单选题】听力原文:M: What did you think about the video we were supposed to watch for Professor Stephen' s class? W: I didn't see it. Was it good? M: Really it was. It was about stress, the effects of stress on th...
A.
It is required by Professor Stephen.
B.
It is very interesting.
C.
He wants to know about heart attacks.
D.
He took part in the discussion.
【单选题】肽聚糖是细菌细胞壁的主要成分,也是( )的特有成分
A.
原核细胞
B.
真核细胞
C.
非细胞型微生物
D.
真核细胞型微生物
【判断题】脂多糖是细菌细胞壁的主要成分。( )
A.
正确
B.
错误
【单选题】What is wrong with the video recorder?
A.
It was slightly damaged.
B.
It destroys video tapes.
C.
Its compartment is broken.
D.
It produces unclear visions.
【单选题】According to the video,what will the manager do at 10 a.m.?
A.
have lunch with Mrs. Foster
B.
have a meeting about the overseas market
C.
attend a press conference
D.
fly to Paris
【单选题】What else can we learn from the video?
A.
What else can we learn from the video?
B.
The show will start at 8 pm.
C.
Jack is bound to be late for the show.
D.
Jack promises to come to the Hall before eight.
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