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【简答题】
Tom arrived at the bus station quite early for Paris bus. The bus for Paris would not leave until five to twelve. He saw a lot of people waiting in the station. Some were standing in line(排队) , others were walking around. There was a group of schoolgirls. Their teacher was trying to keep them in line. Tom looked around but there was no place for him to sit. He walked into the statiom café. He looked up at the clock there.It was only twenty to twelve. He found a seat and sat down before a large mirror(镜子) on the wall. Just then, Mike, one of Tom’s workmates came in and sat with Tom. “ What time is your bus? ”asked Mike. “ There’s plently of time yet,” answered Tom. “Well, I’ll get you some more tea then,” said Mike. They talked while drinking. Then Tom looked at the clock again. “Oh!It’s going backward(倒行) !”he cried. “A few minutes ago it was twenty to twelve and now it’s half past eleven.” “You’re looking at the clock in the mirror.” Said Mike. Tom was so sad. The next bus was not to leave for another hour.Since then Tom has never liked mirror. 小题1:Tom went into the station café because . A. Mike asked him to have a cup of tea B. it was quite early and he could find a seat there C. he didn’t like to stay with the schoolgirs 小题2:What time was it in fact when Tom looked at the clock in the mirror? A. Half past twelve  B. Twenty to twelve  C. Half past eleven 小题3:From the story we know that when we look at a clock in a mirror, we will find . A. the time is right  B. it’s going slower  C. it’s going backward 小题4:Which of the following is true ? A. Tom arrived in Paris on time B. Tom looked at the clock in the mirror only once. C. After that Tom didn’t clocks any longer. 小题5:Which of the following is the title() of the story ? A. The Mirror of the Station. B. Not A Careful man. C. The Clock In The Mirror.
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【简答题】Please summarize Paragraph 3 in your own words in one or two sentences .
【单选题】微溶化合物A 2 B 3 水溶液中,测得B的浓度为3.0×10 -3 ,则微溶化合物A 2 B 3 的溶度积为( )
A.
1.1×10 -13
B.
2.4×10 -13
C.
1.08×10 -13
D.
2.6×10 -11
【单选题】微溶化合物 A 2 B 3 水溶液中,测得 B 的浓度为 3.0×10 -3 mol /L ,则微溶化合物 A 2 B 3 的溶度积为
A.
1 . 1 ×10 -13
B.
2 . 4 ×10 -13
C.
1 . 0 8 ×10 -13
D.
2 . 6 ×10 -11
【简答题】逆变电路中,当 时,称为有源逆变电路,当 时,称为无源逆变电路。欲实现有源逆变,只能采用 电路,当控制角 时,电路工作在 状态;π╱2〈α〈π时,电路工作在 状态。为防止逆变失败,最小逆变角限制为 。
【单选题】Rc in the pipe thread designation represents: (Single option: 10 points)
A.
Taper internal thread
B.
ylindrical internal thread
C.
Taper external thread mating with cylindrical internal thread
D.
Taper external thread mating with taper internal thread
【单选题】In order to calculate the volume of water flowing through a pipe, it is important to know its speed and ______
A.
the area across the end of the pipe
B.
the length of the pipe
C.
the water pressure in the pipe
D.
the level from which the water falls
【多选题】依据《基础地理信息标准数据基本规定》,下述表述正确的是()
A.
基础地理信息标准数据的数学基础包括:平面和高程坐标系统、比例尺和投影方式
B.
基础地理信息标准数据的生产过程应执行过程检查、᳔终检查和验收制度
C.
过程检查由生产单位完成,᳔终检查和验收由项目主管部门组织实施
D.
数据认定时生产单位应提供由注册测绘师签字认可的证明文件
【简答题】Please summarize Paragraph 4 in your own words in one or two sentences .
【多选题】下列选项中,属于管理类标准的是( )。
A.
《基础地理信息标准数据基本规定》
B.
《公开版地图质量评定标准》
C.
《导航电子地图安全处理技术基本要求》
D.
《全球定位系统(GPS)测量规范》
E.
《测绘作业人员安全规范》
【简答题】Please summarize Paragraph 2 in your own words in one or two sentences .
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