可以找到CIDS的CLASS3故障信息的是()A.PTP的’,系统状态" B.PTP

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问题:

可以找到CIDS的CLASS3故障信息的是()

A.PTP的’,系统状态"

B.PTP的’,系统测试"

C.PTP的’,系统编程,

D.PTP的上一次航段故障

考点:民用航空器维修执照考试A320系列飞机MEA320系列飞机ME题库
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两个三角形有以下元素对应相等,则不能确定全等的是[ ]

A.一边两角

B.两边和其夹角

C.两边及一边所对的角

D.三条边

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Yang Nan, 17, was happy to move to her new home in a northern area of Beijing. She was told that her neighborhood used to be rich farmland planted with vegetables, corn and wheat. But looking at the new road, beautiful parks and supermarkets, to her surprise, Yang couldn't see any sign that food was once grown there.

Yang is not alone. In recent years, many Chinese people have moved into new houses in country areas. Tall buildings have been built everywhere in the suburbs. The crops and fruit trees are no more grown there. But these changes have caused big problems too, warns Gan Zangchun, an official(官员)at the Ministry of Land and Resources(国土资源部).

"Chinese cities are growing very fast. This has made the area for farmland much smaller than before. This is really bad for the country's ability to grow food, not to mention the lives of farmers," said Gan last Monday.

As the population of China is growing all the time, the country needs more farmland to grow food for the increasing people of China. But the recent rise in house prices has made selling land a good business. A lot of land has been used to build new houses for sale. So you can see, the shortage of the farmland is now a very serious problem.

Pollution, such as, oil pollution, industrial(工业) pollution and water pollution, which makes land useless, is another reason for the big drop in China's farmland. About 2.67 million square kilometers of land in China have been polluted and turned into desert.

Today, can we use less farmland to grow enough food for more people? Of course not! The government wants China to have at least 120 million hectares(公顷) of farmland. Only in this way can we raise such a big population. But there are only about 121.8 million hectares left. "It will be really difficult to reach the goal", Gan said. He said that the government would fight illegal(非法的) land use and something useful must be done to stop farmland from becoming desert.

小题1:The article seems to tell us that_____________.

A.farmland is in danger

B.countryside is turned into towns

C.farmland has been sold

D.Chinese cities are growing fast小题2:From what Gan Zangchun said, we know he is worrying about ____________.

A.China's development is too slow

B.the population of China is growing fast

C.Chinese people have worse life than before

D.the reduction(减少) and pollution of the farmland小题3:What size of the land have been polluted and turned into desert?

A.120 million hectares.

B.121.8 million hectares.

C.2.67 million square kilometers.

D.Millions of square kilometers.小题4:Which statement of the following is NOT true?

A.Yang Nan's new home is in a northern area of Beijing.

B.The country needs enough farmland so that the farmers can grow enough food for the people of China.

C.Chinese cities are growing too slowly so the government encourages people to change the farmland into towns.

D.Pollution is also an important reason for the big drop in China's farmland.小题5:What will the government do with the problem of the drop in China's farmland?

A.Government needs farmland to grow food for the people of China.

B.Government will order not to build new towns any more.

C.Government will stop the growth of the cities in order to stop selling farmland for business.

D.Government will fight illegal land use and stop farmland from becoming dessert.

题型:单项选择题

如图所示,A是地球的同步卫星,已知地球半径为R,地球自转角速度为ω,地球表面的重力加速度为g.

(1)求出同步卫星离地面高度h

(2)求出地球的密度ρ(已知引力常量为G)

题型:单项选择题

病毒对()不敏感

A、高温

B、紫外线

C、抗生素

D、干扰素

题型:单项选择题

X、Y是ⅦA族中的两种元素。下列叙述中能说明X的非金属性比Y强的是[ ]

A.X原子的电子层数比Y原子的电子层数多

B.X的氢化物的沸点比Y的氢化物的沸点低

C.X的气态氢化物比Y的气态氢化物稳定

D.Y的单质能将X从NaX的溶液中置换出来

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