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【单选题】
圆柱度的 公差带形状是A.
半径为公差值t的两同轴圆柱面之间
B.
直径为公差值t的两同轴圆柱面之间
C.
公差值t的两平行平面之间
D.
半径为公差值t的两同心圆之间
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举一反三
【简答题】传染病(infectious disease)
【单选题】Many people like white color as it is a ________ of purity.
A.
symbol
B.
sign
C.
signal
D.
symptom
【简答题】The world is an interesting place. Different people like different things. Some people like loud music. Other people don’t. They like 1 music. Many people like sports, but they do not 2 the same sport...
【简答题】Information Sheet 1. Summer is a time to _____ and do things you like. 2. Many people like to _____ in summer . 3. The speaker has been to more than _____ countries. 4. The speaker asks the listeners...
【单选题】The bottom row of plating next to the keel of a lifeboat is known as the（）.
A.
sheer strake
B.
bilge strake
C.
garboard strake
D.
keel rib
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