试题与答案

计算：-m2· m3 的结果等于　[ ] A．-m5 　 B．m5 C．-m6

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题型：选择题

题目：

计算：-m2· m3 的结果等于　[ ]

A．-m5 　

B．m5

C．-m6

D．m6

答案：

答案：A

考点：整式的乘法
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题型：阅读理解
任务型阅读：请认真阅读下面的短文，并根据所读内容在文章后的空格内填入最恰当的单词。
每空格1个单词。
     Weddings are so important in China that couples are willing to fork out about 20 times their monthly
income on getting hitched and everything that comes with it.
     China's newly-weds in cities spend 126,600 Yuan (16,600 U.S. dollars) on average in 2006 when getting
hitched, Thursday's Chongqing Youth Daily reported, citing a recent survey by the Ministry of Commerce.
     An analysis of 60,000 couples living in cities showed that about 64 percent of the spending went on house
decoration, furniture and household appliances and the rest was spent on the wedding, such as the ceremony,
photography, wedding dresses and feast.
     The survey said the wedding expenditure was only a small share of the overall marriage cost as most
Chinese young couples in the cities tended to buy an apartment and a car before tying the knot.
     The survey said that about 81.6 percent of the newly-weds admitted that they had got economic support
from parents as their monthly income on average was only about 6,240 yuan.
     The survey also showed that about 88.4 percent of the newly-weds chose having wedding photography
as a priority and 78.74 chose hosting a wedding banquet.
     In contrast, young couples in the countryside spent about 40,000 yuan on average on marriage-related
issues, less than one third of their city peers, according to the report.
     About 8.49 million couples got married in China in 2006.
                                                   Title: China's 1______ spend too much
Wedding cost 1. China's newly-weds in cities spend 2______ dollars on average in
    2006.
2. In the 3______, young couples spent 4______ than one third of
    their city peers.
The use of
5______ 		1. About 64 percent of the spending went on house 6______, furniture
    andhousehold appliances.
2. The rest was spent on the wedding, for example the ceremony,
    7______, wedding dresses and feast.
The source of
money 		They got the 8______ support from their 9______ because their
income was not high enough.
The 10______ for
the high expense        		The newly-weds usually spend a lot because they have many things to buy,
such as houses and cars.
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题型：单项选择题

2009年全国研究机构R&D经费995.9亿元，是2000年的3.9倍，年平均增长16.2%。

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按经费来源分，政府资金849.5亿元，占85.3%；企业资金29.8亿元，占3.0%；国外资金4.2亿元，占0.4%；其他资金112.4亿元，占11.3%。

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能够从上述资料中推出的是（）。

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D．R＆D经费按经费来源分，政府资金是企业资金的30倍
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