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【判断题】
采用包容要求时,若零件加工后的实际尺寸在最大、最小尺寸之间,同时形状误差小于等于尺寸公差,则该零件一定合格。
A.
正确
B.
错误
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举一反三
【单选题】He is to lift heavy things.
A.
strong enough       
B.
enough strong           
C.
weak strong
【单选题】she
A.
r
B.
y
C.
n
D.
o
【单选题】The main reason(s) for an exporter to consistently offer quotes in the importer’s currency is that it makes it easier for the importer ___.
A.
to determine what its actual costs will be
B.
to avoid currency fluctuation risks
C.
to be able to use its own bank
D.
All of the above
【单选题】The word rentable in paragraph 4 is closest in meaning to
A.
strong
B.
beautiful
C.
large
D.
desirable
【简答题】平面四杆机构中,若各杆长度按顺序分别为a=40 mm,b=90 mm,c=80 mm,d=100mm,当以a为机架时该四杆机构为( )
【简答题】平面四杆机构中,若各杆长度按顺序分别为a=40mm, b=90mm, c=80mm,d=100mm, 当以a为机架时该四杆机构为__机构。
【单选题】She gave ____.
A.
to him a meal
B.
meal for him
C.
him to a meal
D.
a meal to him
【单选题】He keeps all his documents in a _______ box. [     ]
A.
 strong, black, metal
B.
 metal, strong, black
C.
 strong, metal, black
D.
 black, strong, metal
【判断题】车削加工时当其它切削条件不变,进给量增加会使表面变得更粗糙。
A.
正确
B.
错误
【简答题】平面四杆机构中 , 若各杆长度按顺序分别为 a=40mm,b=90mm,c=80mm,d=100mm, 当以长度 a 做机架时该四杆机构为 ______ 机构。
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