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【单选题】
螺纹的摩擦角一定时,螺纹升角越小,螺纹连接的自锁性()。A.
越好
B.
越差
C.
不受影响
D.
不确定
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【简答题】When the guards glanced away she darted ___________ ,barely escaping, and huddled in a cold, foul basement full of rats.
【单选题】Questions 8 (Suggested completion time: 2 minutes) Directions: Read the text, and answer the question according to the text. When hunting raccoons for fur was a popular sport, hunting dogs were used t...
A.
solitary
B.
aggressive
C.
nocturnal
D.
herbivorous
【简答题】As a young girl during the Nazi occupation of her native Holland, Audrey Hepburn was aware of the brutality, death, and 1 (destruct) of war. She was hungry and malnourished, as her family was b...
【简答题】求证: $ x(A(x)∧B(x)) Þ $ xA(x)∧ $ xB(x)
【单选题】The error in the sentence 'Does he can sing?' is an example of______.
A.
addition
B.
substitution
C.
omission
D.
misordering
【单选题】An important new industry, oil refining(炼油), grew after the Civil War．Crude oil,or petroleum--a dark, thick ooze from the earth--had been known for hundreds of years.But little use had ever been made ...
A.
Oil refining: a historical perspective.
B.
The California gold rush: get rich quickly.
C.
Private property: trespassers will be prosecuted.
D.
Kerosene lamps: a light in the tunnel.
【单选题】A: Do you like ice cream? B: Yes, I do. This is an example of______.
A.
reference
B.
substitution
C.
conjunction
D.
ellipsis
【单选题】When a feature whose characteristics or descriptions remain unchanged is to be shifted to small distance(s), ______ command is used on a chart.
A.
MOVE
B.
DELETE
C.
AMEND
D.
SUBSTITUT
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