2500+子架IU2板位到交叉板的VC4总线数量是（）。 A.1个VC4 B.2个V_爱下问搜题

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问题单项选择题

2500+子架IU2板位到交叉板的VC4总线数量是（）。

A.1个VC4

B.2个VC4

C.4个VC4

D.8个VC4

答案

参考答案：C

完形填空

With the introduction of family planning policies in the 1970s, most Chinese teenagers have no brothers or sisters．They get to be the beloved（心爱的）__36__child．But they may not realize that they will have to “__37__”the love as their__38__ones grow old．They will have to__39__lots of old people—their parents, grandparents, their__40_parents and grandparents．China is being__41__country．
According to the United Nations, an aging society refers to one 42 10 percent or more of the population is over 60, or 7 percent or more is over 65. According to 43 from the Ministry of Civil Affairs, by 2008, Chinese over 60 years old made up 12 percent of the nation’s total population. The 44 for those aged 65 or older was 8.3 percent.
In China, people have a belief that “parents raise children; then the children care for the parents as they get old”．But this__45__is under stress as the market ey puts millions of young Chinese on the road__46__better paying jobs．They are leaving their parents__47 ．Now many families are looking more to the government than to their__48__for support when they’re old．China has increased its basic social security（基本社会保险）plan which is__49__protecting those__50__, including the old, the disabled and others．These programs are now broad, __51__they are still not highly developed．
As more people grow__52__, China will have fewer working people, __53__will slow down economic growth. According to a November 26 report in the Economic Information Daily, an expert said China should 54 its people to have more than one child in the future 55 China should keep its labor population and total population size stable(稳定的).

D．pay attention to

A．daughter’s or son’s	B．niece’s or nephew’s
C．wife’s or husband’s	D．aunt’s or uncle’s

C．a developing

D．a developed

A．in favor of

B．in search of

C．in the way of

D．in the face of

C．in desperate

D．in disaster

判断题

三相异步电动机主要有直接起动、降压起动和绕线式转子异步电动机在转子回路串入附加电阻起动三种起动方式。