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【判断题】
同轴度属于方向公差。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】-- Be careful as you step down. -- __________.
A.
Thank you.
B.
That’s very kind of you.
C.
Sorry.
D.
I don’t know.
【单选题】As an engineer, you can't be careful. You should pay attention to every detail.
A.
very
B.
too
C.
so
D.
quite
【单选题】Be careful when you deal with this chemical, as it will explode when _____ to sunlight. [ ]
A.
being exposed
B.
to expose
C.
exposing
D.
exposed
【单选题】Be careful when you watch the painting as it is______.
A.
valueless
B.
priceless
C.
costless
D.
worthless
【单选题】Be careful when you deal with this chemical, as it will explode when ______ to sunlight.
A.
exposed
B.
to expose
C.
exposing
D.
being exposed
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