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完形填空。 December 21st is my grandma's birthday. I'll go back to my hometown 1 my parents. Yesterday evening our family 2 the presents for my grandma. ' 3 can we buy for my grandma's birthday?' I asked. 'We can buy her a big suit,' said my mother. 'My sister 4 me yesterday. She said she would buy clothes for my mother,' said Father. 'We can buy her a big 5 and some vegetables.' I said. 'My brother, your uncle, told me he would prepare the birthday 6 .' my father said to me. 'Can we buy something 7 ?' asked my father. We thought 8 . At last I shouted, 'I know. We can buy 9 some Wahaha!' 'Wahaha?' asked my father. 'Why?' 'Grandma is 10 . She lost some of her teeth. If we buy her some Wahaha, she will drink it and get all the calcium (钙) she needs.' (     )1. A. and (     )2. A. looked for (     )3. A. Where (     )4. A. called (     )5. A. pear (     )6. A. suit (     )7. A. others (     )8. A. hard (     )9. A. she (     )10. A. strong B. with B. talked about B. Which B. took B. apple B. dinner B. another B. of B. hers B. old C. for C. found C. How C. said C. cake C. present C. other C. about C. her C. tall D. at D. heard from D. What D. made D. orange D. dress D. else D. over D. us D. thin
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【多选题】模块二知识点4油机发电机组作业. 3.四冲程柴油机的一个工作循环包括( )四个冲程。
A.
进气
B.
压缩
C.
作功
D.
排气
【单选题】四冲程柴油机的一次工作循环,凸轮轴旋转()周。
A.
1
B.
2
C.
3
D.
4
【单选题】在如图3-1所示双代号网络图中,不存在( )错误。
A.
节点编号重复
B.
虚工作多余
C.
循环回路
D.
箭尾节点号大于箭头节点号
【单选题】文件的平时收集工作包括1.零散文件的收集2.();3.专门文件的收集。
A.
“体外”文件的收集
B.
“循环”文件的收集
C.
“缺失”文件的收集
D.
“账外”文件的收集
【单选题】Weil层又称
A.
多细胞层
B.
无细胞层
C.
髓核
D.
成牙本质细胞层
E.
成纤维细胞层
【单选题】四冲程发动机每完成一个工作循环曲轴转动()周
A.
1
B.
2
C.
3
D.
4
【单选题】Weil层又称
A.
多细胞层
B.
乏细胞层
C.
髓核
D.
成牙本质细胞层
E.
成纤维细胞层
【单选题】已知某挖土机挖土的一个工作循环需2分钟,每循环一次挖土0.5m3.工作班的延续时间为8小时,时间利用系数K=0. 85,则该机械的产量定额为( ) m3/台班.
A.
12.8
B.
15
C.
102
D.
120
【单选题】把一个模型的功提供给另一个模型,可以用哪种流股线将其连接?
A.
Materaial
B.
Heat
C.
Work
D.
Enthalpy
【单选题】四冲程柴油机的一次工作循环,曲轴旋转()周。
A.
1
B.
2
C.
3
D.
4
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