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【判断题】
游蝶泳时,身体俯卧于水中,两臂划水后提出水面经空中前摆,看上去很想蝴蝶展翅飞舞,因而被成为“蝶泳”。
A.
正确
B.
错误
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【简答题】温度计水银球( )应和蒸馏头侧管的下限在同一水平线上。
【判断题】温度计水银球下限应和蒸馏头侧管的上限在同一水平线上。
A.
正确
B.
错误
【简答题】完形填空。 Spend time in a bookshop can be enjoyable. If you go to a good shop, no __ 1 __ will come near to you and say, 'Can I help you?' You __ 2 __ buy anything you don't want. You may try to find out ...
【单选题】In a good bookshop, _________.
A.
all the books there are interesting.
B.
you are satisfied.
C.
you can find shelter from a shower.
D.
you need to buy something you don’t want.
【单选题】According to the text, in a good bookshop _____.
A.
nobody takes any notice of you.
B.
the assistant greets you in a friendly way.
C.
your heart is contented.
D.
you feel that you are in a music shop.
【单选题】—What a fine day today! —Yes,but it’s a bit ________ than yesterday.
A.
hot
B.
hotter
C.
so hot
D.
hottest
【单选题】----Four dollars a pair? I think it’s a bit too much. ----If you buy three pairs, the price for each will_____to three fifty.
A.
come down
B.
take down
C.
turn over
D.
go over
【判断题】温度计水银球下限应和蒸馏头侧管的上限在同一水平面上。
A.
正确
B.
错误
【简答题】Listen and complete the gaps. Where do you think the speakers are? 1. No. It’s a bit ________. 2. Sorry, she’s a bit _______. 3. It’s a bit of a _________. 在下面直接写答案所需单词,其他不要填,否则系统会判错
【单选题】有两个调定压力分别为5MPa和10MPa的溢流阀并联在液压泵的出口,泵的出口压力为( )。
A.
5MPa
B.
10MPa
C.
15MPa
D.
20MPa
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