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【单选题】
大型风机，一般安装进气箱，其主要作用是（）。A.
便于轴承的安装与检修
B.
将气体的一部分动能转变为静能头
C.
保证气流能均匀地充满叶轮的进口，使气流流动损失最小
D.
收集气体
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【简答题】3 Waiter : After the main course, do you want some _______ ? (academic average dessert exchange experience fond satisfaction sculpture Spanish surf )
【简答题】(in a restaurant) Waiter: Welcome to our restaurant. Customer: 1 . Waiter:What’s your name? Customer:Jim Green Waiter:This way,please. 2 ? Customer:Yes,I’d like two roast beef and fruit salad,please. ...
【简答题】Complete the sentences by translating the given Chinese. 1. The doctor wonders whether you often ________________________ (头疼) . 2. The police ______________________ (不遗余力地) find out all the details a...
【简答题】After we 1 our coffee, the waiter 2 over the check. With the check was a brief customer satisfaction 3 . One side of the questionnaire contained a note from the owner, 4 the words “ I really want to k...
【简答题】Friday night the writer 1 2 his diet and 3 a good meal for losing the pounds he 4 from restaurants last year. He and his wife
went to a restaurant to celebrate the successful 5 of my diet. • The food ...
【单选题】下面关于高程的说法正确的是( )。
A.
高程是地面点和水准原点间的高差
B.
高程是地面点到大地水准面的铅垂距离
C.
高程是地面点到参考椭球面的距离
D.
高程是地面点到平均海水面的距离
【简答题】地面点的高程可分为 高程和 高程。
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