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【多选题】
民用建筑按地上层数或高度分为（）A.
单层民用建筑
B.
多层民用建筑
C.
高层民用建筑
D.
超高层民用建筑
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反馈参考答案：
举一反三
【单选题】Would you mind helping me?
A.
What can I do for you?
B.
I have no idea.
C.
Sorry, I'm busy now.
D.
I would love to.
【单选题】The wind was so strong last night that is tore the ______ of the ship into two or three pieces.
A.
mask
B.
mine
C.
sail
D.
satellite
【简答题】阀门的种类繁多，按压力分类可分为低压、（）、高压和超高压四类。
【单选题】______ is the offense against navigational rules and will make the ship unseaworthy with the Shipowner responsible for all the consequences．
A.
Overloading
B.
Overtaking
C.
Overboarding
D.
Overlining
【单选题】A ship can request completion of a when the ship is operating t a higher security level than the port facility or another ship it is interfacing with----
A.
DOC
B.
DOS
C.
SSP
D.
SMC
【简答题】按流体压力分类，阀门可分为真空阀、低压门、（）和（）。
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