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【单选题】
46大厦在( )层设有观光厅,是目前国内最高最大的观光厅。A.
87
B.
88
C.
89
D.
90
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皮皮学刷刷变学霸
举一反三
【单选题】不属于变频器的定期维护项目的是 ( ) 。
A.
、对紧件进行必要的紧固
B.
、清扫冷却系统积尘
C.
C、检查电源电压是否在允许范围内
D.
、检查冷却风扇、滤波电容器的工作情况
【简答题】The old lady w______ why the boy made fun of her.
【单选题】W： Boy, how quickly technology changes! So many people have a computer in their home nowadays. M：_____________
A.
Computers? There are so many computers in the office.
B.
Yes, I know. I feel so behind the time.
C.
But I know a lot of computers.
D.
Yes, I know. Without computer, there would be no Internet.
【简答题】情景对话。选择后面方框里合适的选项完成对话。 A: (W-woman; B-boy) W: Morning, Boy! B: Morning! W: Can I help you? B: 1_______ W: We have lots of healthy food. 2_______ B: Oh, yes, we do. Father likes tomatoes and salad. 3__...
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