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【简答题】
阅读理解。 When pets get sick,you can usually take them to an animal doctor or an animal hospital.Sometimes animals are so sick or hurt that you shouldn't move them.That's why Dr.Bird,a veterinarian ,has a traveling hospital.Dr.Bird drives his hospital,which is really a van,to the animals. Dr.Bird has run the hospital for over 10 years,and he has saved the lives of many pets.The van has an operating table,medicines and everything else he needs to treat animals.Dr.Bird says that there will soon be many more traveling hospitals to help sick or injured animals. 1. The best name is ________. A. Why People Get Sick B. A Traveling Hospital C. Dogs Make Good Pets D. A Very Sick Animal 2. Dr.Bird has run the hospital for ________. A. 12 years B. 10 years C. 8 years D. 20 years 3. The story says that Dr. Bird's hospital has ________. A. thick rugs B. no lights C. toys D. medicines 4. Dr. Bird is ________. A. a dentist B. an animal doctor C. very young D. very sick 5. The word 'veterinarian' means________. A. animal doctor B. nurse C. farmer D. truck driver
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【单选题】以下关于热量传递的说法,正确的是( )
A.
定态的圆筒壁传热,热通量为常数
B.
传导和对流传热的速率与温度的一次方之差成正比,而辐射的传热速率与温度的四次方之差成正比
C.
换热器的平均传热温度差,是指热流体进出口的平均温度与冷流体的进出口的平均温度的差值
D.
多层平面壁稳态热传导时,推动力是内壁面与外壁面间总的温度差,总热阻是各层热阻的倒数之和
【判断题】多层平面壁稳态热传导时,推动力是内壁面与外壁面间总的温度差;总热阻是各层热阻的倒数之和。
A.
正确
B.
错误
【判断题】多层平面壁稳态热传导时,推动力是内壁面与外壁面间总的温度差;总热阻是各层热阻的倒数之和。
A.
正确
B.
错误
【单选题】以下关于热量传递的说法,正确的是( )。
A.
定态的圆筒壁传热,热通量为常数
B.
传导和对流传热的速率与温度的一次方之差成正比,而辐射的传热速率与温度的四次方之差成正比
C.
换热器的平均传热温度差,是指热流体进出口的平均温度与冷流体进出口的平均温度的差值
D.
多层平面壁稳态热传导时,推动力是内壁面与外壁面间总的温度差,总热阻是各层热阻的倒数之和
【简答题】昆虫的取食按食物的性质分();();();();()五种,按取食范围的大小可分为();();()。
【单选题】以下关于 Python 语言 retur n 语句的描述中,正确的是
A.
函 数 可以没有 retur n 语句
B.
return 语句只能有一个返回值
C.
函数中最多只有一个 retur n 语句
D.
函数必须有 return 语句
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【判断题】礼步常用于烈士陵园献花圈。
A.
正确
B.
错误
【多选题】按昆虫取食的食物性质把昆虫分为()几类
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植食性昆虫
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肉食性昆虫
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腐食性昆虫
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杂食性昆虫
【单选题】It will outline the technologies, markets, customers, financial requirements, risks, returns and commercial strategies adopted by entrants into this new industry.
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composers
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competitors
C.
inventors
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creators
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