相关考题
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单项选择题
Paint should be evenly （）(分布).
A.spread
B.supplied
C.distributed
D.spanner -
单项选择题
The main （）(保护层) is paint.
A. primer boat
B. protective coat
C. top coat
D. under coat -
单项选择题
The purpose of lookout is to prove the （）(安全) of a ship.
A.stern
B.safety
C.saw
D.spanner
