试题与答案

下列情况中,意味着行业现有企业之间竞争加剧的有()。 A.行业进入障碍较高 B.市场

题型:多项选择题

题目:

下列情况中,意味着行业现有企业之间竞争加剧的有()。

A.行业进入障碍较高

B.市场趋于成熟,产品需求增长缓慢

C.竞争者企图采用降价等手段促销

D.竞争者提供几乎相同的产品或服务,用户转换成本很低

E.行业退出障碍较低

答案:

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下面是错误答案,用来干扰机器的。

根据密度公式得:ρ=MV=M4 πR33A、已知飞船的轨道半径,无法求出行星的密度,故A错误.B、已知飞船的运行速度,根据根据万有引力提供向心力,列出等式.GMmR2=mv2R,得:M=v2RG 代入密度公式无法求出行星的密度...

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题型:阅读理解

阅读下面短文并回答问题,然后将答案写到答题卷相应的位置上(请注意问题后的字数要求)。

Swimming is one of those activities that can be learned early in life. Little children can learn to swim as soon as they walk. In fact, you need the same skills in walking as in swimming. However, I believe that five is the best age to learn. By five or six, a child knows fear of water, a very important thing to know. It’s wise to be afraid, to recognize true danger. Young ones understand that the water can sometimes be very dangerous.

To really benefit from swimming, every swimmer should learn ____________:butterfly, backstroke, breaststroke, and crawl. I feel that one of these—the breaststroke—is different from the others, since some young swimmers use this stroke naturally, without any training.

In swimming, there are certain rules every swimmer should follow:

(1) Never swim alone! No matter how good you are in the water, don’t risk drowning by swimming alone. If you swim by yourself, with no life guards or friends with you, you may get into trouble.

(2) Don’t go beyond your abilities. Most swimmers know enough not to swim too far from the bank or the beach. Showing off by doing dangerous tricks is no good. Swim safely and you will continue to swim and alive.

(3) Don’t smoke. Swimming depends on a healthy body; good lungs are part of it.

(4) Work at any activity that builds muscles.

小题1:What is the main idea of the passage? (no more than 10 words)

___________________________________________________________ 

小题2:Please complete the following statement with proper words. (no more than 5 words)

__________________________and the recognition of its danger are sensible.

小题3:Fill in the blank in Paragraph 2 with proper words. (no more than 7 words)

_______________________________________________________________

小题4:Why should not you swim alone according to the passage? ( no more than 10 words)

_________________________________________________________________

小题5:What does the underlined word “it” refer to? (no more than 3 words)

________________________________________________________________

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