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【单选题】
(1.3.3) ( )A.
B.
不存在
C.
1
D.
0
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举一反三
【单选题】Each of the following engines has two cylinder heads, except ().
A.
inline engine
B.
V-type engine
C.
W-type engine
D.
boxer engine
【单选题】Each of the following engines has two cylinder heads,except( )
A.
inline
B.
V type
C.
W type
D.
boxer
【单选题】Each cylinder has one starting valve which is usually opened by air pressure and closed by _____.
A.
nuts and bolts
B.
new joints
C.
spring force
D.
sealing rings
【简答题】冲裁时间隙过小,模具寿命 ,采用较大的间隙,模具寿命 。
【单选题】Each of the following engines has two cylinder heads, except _________.
A.
inline engine
B.
B) V-type engine
C.
W-type engine
D.
boxer engine
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