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【多选题】
对于斜齿圆柱齿轮传动，增大其重合度的方法有A.
增大齿宽
B.
增大螺旋角
C.
增大数模
D.
增多齿数
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皮皮学刷刷变学霸
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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