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【判断题】
班次是指在单位时间内飞行的航班数,单位时间通常计算为一个月A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】It is believed that the feeding patterns parents （ ） on their children can determine their adolescent and adult eating habits．
A.
compel
B.
impose
C.
evoke
D.
necessitate
【单选题】在1..1000的地形图上,量得AB两点间的高差为0.586m,平距为5.86cm;则A,B两点连线的坡度为( )
A.
0.1%
B.
10%
C.
1%
D.
0.01%
【单选题】37在1..1000的地形图上,量得AB两点间的高差为0. 586m,平距为5 . 86cm;则A,B两点连线的坡度为( )。
A.
4%
B.
2%
C.
1%
D.
3%
【简答题】网络脆弱性的原因?
【单选题】The passage suggests that the purpose of the 'hydrographic network' is to ______.
A.
determine the size of molecules of water
B.
prevent soil erosion caused by flooding
C.
move water from the Earth's surface to the oceans
D.
regulate the rate of water flow from streams and rivers
【单选题】首柱是船首结构中的重要强力构件，其作用是：I、增加保留浮力；II、便于甲板排水；III、保持船首形状；IV、会拢外板；V、保证船首局部强度
A.
I、II、IV
B.
II、III、V
C.
II、III、IV
D.
III、IV、V
【单选题】Market economy is an economic system in which the interaction of _____________ determines the quantity in which goods and services are produced.
A.
supply and demand
B.
economy and law
C.
goods and services
D.
market and government
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