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【单选题】
给水泵出口处设有再循环管与除氧器相连的目的是:()
A.
调节除氧器水位
B.
保证除氧效果
C.
防止给水泵低负荷时汽化
D.
启动氧器上水
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A.
破裂
B.
堵塞
C.
联通
D.
畅通
【单选题】China daily is popular with students of English because it helps to improve ___ English.
A.
our
B.
my
C.
one’s
D.
their
【单选题】数学课上,为了更好地形成智力技能,教师常在黑板上清楚而细致地演算例题,给学生提供( )。
A.
原型定向
B.
原型模型
C.
原型操作
D.
原型内化
【简答题】China is a 1.3 billion population country. We always speak Chinese. Now we have to study English. English is difficult to study.
【判断题】福廷式大气压力计只能用其测定大气压力。
A.
正确
B.
错误
【单选题】客观唯心主义哲学认为世界是( )。
A.
客观实存的
B.
人的意识创造的
C.
由神或客观精神创造出来的
D.
由物质和精神两个本原构成的
【简答题】I have a friend. His name is Eric. He is English. But now he is in China. He is a student. Look! This is his classroom. Thir small desks and thirty chairs are in the classroom. They are for his cl...
【单选题】English as a world Language English is a victim of its own success. Newspapers in England have noticed that the incorrect use of cliches are marring the smooth flow of a great language whose ability t...
A.
it has become the most widely used language in the world
B.
It has made a conquest in Japan and China, which were not colonized by Britain
C.
it has beaten other languages such as French
D.
each state or continent has its own version of English
【单选题】管道和容器破裂、进出口阀门开关失灵,导致化工原料、中间品或成品等液体和气体从容器或管道里溢流出来,这种( )事故称作“跑”。
A.
物料损耗
B.
堵塞
C.
联通
D.
畅通
【单选题】管道和容器破裂、进出口阀门开关失灵,导致化工原料、中间品或成品等液体和气体从容器或管道里溢流出来,这种物料损耗事故称作( )。
A.
B.
C.
D.
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