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【判断题】
在铰链四杆机构中，若最短杆与最长杆长度之和小于或等于其他两杆之和，且最短杆为连架杆时，则机构中只有一个曲柄。 （ ）A.
正确
B.
错误
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【单选题】A recent study shows that health problems are closely_______bad eating habits and a lack of physical exercise.
A.
connected with
B.
related with
C.
connected to
D.
joined to
【单选题】Before starting a diesel engine that has an engine driven lube oil pump, the engineer should _____.
A.
open the bypass line
B.
cut in the lube oil cooler
C.
pressurize the lube oil system
D.
top off the expansion tank
【单选题】In recent fashion shows, silk and jeans seem to be a perfect in the hand of those famous designers. [ ]
A.
fit
B.
suit
C.
pack
D.
match
【单选题】The cooling water of the diesel engine should be treated, because it has ____.
A.
alkalescence
B.
acidity
C.
salinity
D.
impurity
【简答题】在开发计算机辅助课件时采用的主要理论是( ) a. 试误说 b. 程序教学法 c. 认知-发现理论 d. 建构主义
【单选题】Turbocharging of marine diesel engine is achieved by two distinct methods, _____ termed the constant pressure and the pulse system.
A.
respectable
B.
respectful
C.
respective
D.
respectively
【多选题】社会主义建设道路初步探索的意义在于
A.
为开创中国特色社会主义提供了宝贵经验
B.
为中国特色社会主义建设提供了物质基础
C.
丰富了科学社会主义理论和实践
D.
为开创中国特色社会主义道路提供了理论准备
【单选题】The recent finding shows that once _____ computer games, one will find it difficult to give it up. [ ]
A.
satisfied with
B.
addicted to
C.
bored of
D.
impressed by
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