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【简答题】
Fill in the blanks with the expressions given below.Change the forms where necessary. by the time feel like get on/off head for tap (sb.) on the shoulder result in pull over in the end instead of turn out (all right) 1. I ran to the railway station as fast as I could but found the train was almost full by the time I __________. . 2. Having finished his work ahead of time, Philip was happy to leave his office and __________ the airport to enjoy his holiday. 3. You should have seen Boris ’ s face when Max_____ him ______________. How surprised he was at that moment! 4. When a policeman saw the bus driver running a red light, he called to him to ___________ and walked towards the bus. 5. His poor English has _______________ misunderstandings between him and his American boss. 6. What a lovely day it is! Do you ____________ a walk along the mountain path? 7. ___________________ we got to the bus stop, the last bus had already left. 8. Though there were quite a few difficulties, I was sure that things were going to _____________________. 9. At the meeting, there were many different suggestions for our holiday, but ____________ we decided to take George ’ s suggestion and went to the seaside again. 10. I can ’ t understand why they chose him _____________ you — you can do the job much better than he. .
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【简答题】零件是机器及各种设备的(),构件是机构中的()。
【判断题】if-elseif是多分支选择语句。
A.
正确
B.
错误
【简答题】C51 中的基础语句是: 选择语句; 循环语句; 循环语句; 多分支选择语句; 循环语句。
【判断题】传统照相机的工作原理是通过控制光圈的大小和快门的开启与关闭,镜头把被摄景物成像在胶片上,胶片即被感光而形成潜影,从而完成了一次拍照动作,形成了一个图片文件。
A.
正确
B.
错误
【多选题】对轴类零件的下列加工中属于预加工的有(      )。
A.
校正
B.
切断
C.
切端面钻中心孔
D.
荒车
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A.
只有Ⅱ
B.
Ⅱ、Ⅲ和Ⅳ
C.
Ⅱ和Ⅳ
D.
Ⅰ、Ⅱ和Ⅲ
【单选题】传导精细触觉的传导束是()
A.
皮质脊髓束
B.
薄束和楔束
C.
脊髓丘脑束
D.
脊髓小脑束
【单选题】IEEE 802标准所描述的局域网参考模型对应于OSI参考模型的哪一(几)层? Ⅰ.逻辑链路控制层 Ⅱ.数据链路层 Ⅲ.网络层 Ⅳ.物理层
A.
只有Ⅱ
B.
Ⅱ、Ⅲ和Ⅳ
C.
Ⅱ和Ⅳ
D.
Ⅰ、Ⅱ和Ⅲ
【单选题】传导精细触觉的传导束是
A.
皮质脊髓束
B.
脊髓丘系
C.
外侧丘系
D.
薄束、楔束
E.
脊髓小脑后束
【单选题】水果、菜在储酸的过程中会逐断蒸发脱水,一般来说如果重量损失达到_____新鲜度就会明显下降.
A.
3%
B.
5%
C.
7%
D.
9%
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