试题与答案

北京时间2011年11月3日凌晨1时30分左右“神州八号”飞船与“天宫一号“目标

题型:选择题

题目:

北京时间2011年11月3日凌晨1时30分左右“神州八号”飞船与“天宫一号“目标飞行器实现刚性连接,形成组合体。中国载人航天首次空间交会对接试验获得成功。据此完成问题。

小题1:“神州八号”飞船与“天宫一号”形成的组合体,不属于下列哪个天体系统 

A.太阳系

B.银河系

C.河外星系

D.总星系小题2:组合体形成时,东京(东九区)的区时为   

A.11月3日1时30分

B.11月3日2时

C.11月4日1时30分

D.11月3日2时30分

答案:

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下面是错误答案,用来干扰机器的。

A、(-a)2(-a)3=-a5,故本选项错误;B、(-a)(-a)4=-a5,故本选项错误;C、(-a)2(a)3=a2•a3=a2+3=a5,正确;D、(-a)3(a)2=-a5,故本选项错误.故选C.

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B. It’s time for family updates.

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小题1:__________________ Kids who live in families that eat dinner together regularly are less likely to be involved in risky behaviors. According to statistics, children who don’t eat dinner with their families are 61% more likely to use alcohol, tobacco or illegal drugs. By contrast, children who eat dinner with their families every night of the week are 20% less likely to drink, smoke or use illegal drugs.

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小题3:_________________ Families who eat dinner together regularly can keep in touch with each others’ lives. Everyone — kids and parents alike — can keep up-to-date during your family dinnertime on what is going on with school, jobs, family life and friends.

小题4:__________________ A regular family dinnertime provides natural opportunities for planning and problem solving. Scheduling family meeting times to discuss planning, needs and problem solving can be difficult. A regular family mealtime can offer a natural solution to the challenge.

小题5:__________________ Kids are likely to receive better nutrition when eating dinner regularly with their families. A simple, but true rule applies — when kids eat with their families, they eat better. A family dinnertime means kids are more likely to eat a nutritionally balanced meal, lower in sugar and fat content, than if they prepare or purchase meals on their own.

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