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问题 单项选择题

在牙嵌式应用最广泛的是（）

A.三角形齿

B.梯形齿

C.矩形齿

D.都不是

答案

参考答案：A

阅读理解

D
The following is a timetable in Shanghai Pudong International Airport．
Airline
Flight Number
Destination
Departure
Gate
Air Canada
137
Beijing
10:12 a．m．
24
Japanese Airlines
320
Tokyo
10:30 a．m．
18
British Airways
405
Paris
11:00 a．m．
20
Pan American
226
London
11:20 a．m．
12
Pan American
12
Beijing
11:43 a．m．
15
Air Canada
178
Tokyo
12:32 a．m．
21
CAAC
289
Hong Kong
12:32 a．m．
14
CAAC
314
Moscow
12:45 a．m．
18
British Airways
230
New York
12:55 a．m．
23
71. A man wants to take Flight 178 to Tokyo. Which gate should he go to?
A. 14      B. 28   C. 21         D. 18
72. Lisa is at gate 23. Where is she going?
A. Paris   B. Beijing      C. Tokyo         D. New York
73. Now it’s 10:40. Mary is at gate 20. Which airline’s plane will she take?
A. British Airways        B. Japanese Airlines
C. Pan American           D. Air Canada
74. Gate _______ is the busiest among all these gates.
A. 23         B. 18           C. 24    D. 15
75. Which airline’s flights cover the longest route(行程)?
A. CAAC                                       B. Pan American 
C. British Airways                                  D. Air Canada
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单项选择题

用（）多点测量卡盘平面与工件之间的距离，可初步找正平行度。

A、钢板尺

B、角度尺

C、千分尺

D、百分表
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