水稻有效积温是水稻全生育期内或某一生育时期内有效温度的总和,其中有效温度是指活动温度

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问题:

水稻有效积温是水稻全生育期内或某一生育时期内有效温度的总和,其中有效温度是指活动温度与生物学下限温度(水稻一般为8℃)之差。

考点:农艺师考试水稻水稻题库
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风湿性心脏病严重二尖瓣狭窄突发大咯血是由于()

A.肺毛细血管破裂

B.合并肺结核

C.急性肺水肿

D.支气管静脉破裂

E.合并支气管扩张

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下列与客户沟通的形式中,( )是一种面对面的沟通形式。

A.人员推销

B.广告促销

C.营业推广

D.公共关系

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In relation to the law of torts:

(a) explain the meaning of ‘intentional torts’ and provide four examples of ‘intentional torts’; (3 marks)

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E

The Middle East countries and other world powers have been facing major political tensions (紧张) which have made the stability (稳定) of the oil prices very unforeseeable. Each day the prospect (前景) of oil prices has become more and more unclear.

Water fuel has been developed as an alternative (替代) source of fuel which has fast become popular around the world. This exciting technology has various advantages. More than 70 percent of the Earth is covered with water and this fuel source does not produce any harmful pollutants or dangerous emissions either. They in fact also double the mileage of the cars that are powered by them.

Water fuel technology has been known to be the best additional form of fuel source for petrol (汽油) or other fuel sources. However, any say that this technology can be only an additional source and not a replacement is totally incorrect and misleading. Such ideas have been suggested by those who look down on this technology. On the contrary, this technology has numerous benefits such as it does not produce any harmful emissions which can affect the climatic changes. It further helps to reduce the level of noise produced by the engines.

Various researches reflect that running costs on fuels for automobiles can be easily saved up to 40 percent with the help of water cell technology. This technology can easily work on various cars powered by gas. It can also be used for trucks, vans and other vehicles. The tap water can also be easily used directly and you do not need any special water that is specifically treated to be used for this purpose. You can easily find a lot of details so that you can adapt your car to use the technology.

57. We can learn from the first paragraph that the price of oil ______.

A. is going down at present               B. has been rising for a long time

C. is unstable for political reasons          D. is decided by powerful countries

58. People holding the opposite idea think that ______.

A. the world climate won’t be influenced by fuel

B. the engines will give out less noise than before

C. petrol can’t be completely replaced by water fuel

D. water fuel can’t act as an additional source for gas

59. We can learn from the text that ______.

A. the Middle East countries are at peace now

B. a new kind of energy has been found recently

C. vehicles using the new technology cost much more

D. the world will be cleaner with the use of the new fuel

60. What is the best title for the text?

A. Water fuel — Lower Cost            B. Water fuel — a Safer Choice

C. Water fuel — a Long Way to Go       D. Water Fuel — Becoming a Reality Now

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为文字添加“投影”样式时,如果要使投影边缘的模糊程度增大,需要在【图层样式】面板中调节的参数是()。

A、“距离”

B、“大小”

C、“扩展”

D、“等高线”

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