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问题 选择题

Don’t lose heart . Keep on working hard and you will succeed________.

A on time     B at no time     C at one time     D in time

答案

答案：D

单项选择题

(一) Today our knowledge of food and what it does for our bodies are far more advanced than that of the old times. Now we know about vitamins and how each kind of vitamin helps in the growth of a particular, the food that we eat will take care of our body and so there is no need to take any kinds of vitamins unless our doctor tells us that our bodies are short of something which can be supplied by them. Generally speaking, everything we eat does some good to our body. But if we eat too much of one kind of food and pay too little attention to others, we may have too much of one kind and not enough of others. Then we may be in trouble. We are often told that we must eat some meat at each meal in order to get the necessary proteins. That is only partly true, for proteins are not found only in meat. We can also get them from some vegetables. The best advice about what to eat is that we should eat all kinds of food but never too much of any.

One may take certain vitamins when______

A．one wants to encourage the growth of a particular part of the body

B．one eats all kinds of food

C．one’s health is harmed by the lack of certain things which can be supplied by vitamins

D．one eats well and properly______
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单项选择题

2008年1—12月，全国汽车产量932.36万辆，出口68.49万辆，占国内汽车产量的7.36%，出口同比增长11.25%，增幅回落67.7个百分点；整车出口金额96.33亿美元，同比增长31.75%，增幅回落101.44个百分点。自2008年8月以来．我国汽车出口增幅呈大幅下滑态势。一季度，汽车出口17.94万辆，同比增长79.38%；二季度出口20.50万辆，同比增长44.99%；三季度出口17.71万辆，同比增长2.65%；四季度出口12.33万辆，同比负增长38.88%。

下列说法中，正确的是（）。

A．2008年全年汽车出口量相比2007年有所下降

B．2008年11月和12月汽车出口量的总和都没有2007年12月单月出口量多

C．2007年1月到2008年12月期间，2008年12月的汽车出口量最少

D．2008年7、8、9三个月的汽车出口量总和相较去年同期有所下降
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