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【判断题】
在放置门时,键盘输入“SM”或“回车”,可自动捕捉到墙线中点插入。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】In a four-stroke/cycle diesel engine, the camshaft rotates at _____.
A.
twice the crankshaft speed
B.
half the crankshaft speed
C.
the same speed as that of the crankshaft
D.
a speed independent of that of the crankshaft
【单选题】在贮存和使用易燃液体的区域必须要有良好的通风条件, 其主要目的是为了。
A.
)
B.
防止易燃气体积聚而发生爆炸和火灾
C.
冷却易燃液体
D.
保持易燃液体的质量
E.
令使用者身心舒畅
【单选题】The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at .
A.
one half crankshaft speed in a two-stroke cycle diesel engine
B.
crankshaft speed in a two-stroke cycle diesel engine
C.
two times crankshaft speed in a two-stroke cycle diesel engine
D.
one-fourth times crankshaft speed in a four-stroke cycle diesel engine
【单选题】在下列各式中正确的个数是( ) 11∈{0,1,2};2{1}∈{0,1,2};3{0,1,2}⊆{0,1,2};4{0,1,2}={2,0,1}
A.
1
B.
2
C.
3
D.
4
【单选题】The crankshaft deflection is at first to be _____ before and after repair.
A.
disassembled
B.
renewed
C.
measured
D.
regulated
相关题目：
【单选题】在贮存和使用易燃液体的区域必须要有良好的通风条件, 其主要目的是为了。
A.
)
B.
防止易燃气体积聚而发生爆炸和火灾
C.
冷却易燃液体
D.
保持易燃液体的质量
E.
令使用者身心舒畅