皮皮学,免费搜题
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搜题
【单选题】
指出以下反应中可能存在的错误步骤
A.
①错误
B.
②错误
C.
③错误
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following does the author mention as crucial evidence concerning the manner in which the Byzantine revival began?
A.
The Byzantine military revival of the 860' s led to economic and cultural advances,
B.
The Byzantine cultural revival lasted until 1453.
C.
The Byzantine economic recovery began in the 900' s.
D.
The revival of Byzantine learning began toward the end of the eighty century.
【多选题】与干式缸套相比,湿式缸套的特点是( )
A.
散热效果好
B.
气缸密封效果好
C.
冷却液不易泄漏
D.
缸体刚度大
【单选题】To be elected to the Senate a person must______.
A.
be at least 25 years old
B.
be at least 30 years old
C.
have been a citizen for seven years
D.
be a lawyer
【单选题】【B2】
A.
more and more
B.
most and most
C.
less and less
D.
least and least
【多选题】Which of the following does the professor mention as the benefits of the study of fossils?[Clink on 2 answers. ]
A.
It provides information on how dinosaurs become extinct.
B.
It helps petroleum engineers with the finding of oil.
C.
It helps petroleum engineers to purify oil.
D.
It gives clues to how life originated and evolved.
【单选题】Which of the following did the woman NOT mention about the production of the armchairs?
A.
Time.
B.
Labor.
C.
Technology.
【单选题】Which of the following doesn't the woman mention as the way to get information?
A.
Television.
B.
Radio.
C.
Internet.
D.
All sorts of magazines.
【判断题】湿式气缸套比干式气缸套冷却效果好,但是使用这种缸套的气缸体刚度差,易于漏气、漏水。
A.
正确
B.
错误
【单选题】治疗咽喉红肿疼痛,以下药中宜选用:
A.
山药
B.
西洋参
C.
甘草
D.
党参
【单选题】下列说法正确的是( )。
A.
干式气缸套外壁直接与冷却水接触
B.
干式气缸套壁厚度比湿式气缸套大
C.
干式气缸套安装后比湿式气缸套强度和刚度好
D.
干式气缸套比湿式气缸套冷却效果好
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