下列现象中,属于光的反射的是( ) A.平静的水面能清楚地映出岸上的景物 B.人

题型:多选题

问题:

下列现象中,属于光的反射的是(  )

A.平静的水面能清楚地映出岸上的景物

B.人在阳光下形成的影子

C.利用潜望镜在潜艇里观察的海面情况

D.斜插入水中的竹竿,在水中的一段看起来向上弯折了

考点:光的反射现象光的直线传播的应用光的折射现象
题型:多选题
一个数由三个7和三个0组成,如果这个数只读出两个零,那么这个数是(   )
A.707070B.700707C.770700
题型:多选题

上市公司董事会对年度股东大会临时提案审核的原则有( )。

A.关联性

B.合理性

C.重要性

D.程序性

题型:多选题

阅读理解

     Are some people born clever, and others born stupid? Or is intelligence developed by our

environment and our experience? Strangely enough, the answer to these questions is yes. To

some extent our intelligence is given to us at birth, and no amount of education can make a genius

out of a child born with low intelligence. On the other hand, a child who lives in a boring environment

will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits

of person's intelligence are fixed at birth, whether or not he reaches those limits will depend on his

environment. This view, now held by most experts, can be supported in a number of ways.

      It is easy to show that intelligence is to some extent something we are born with. The closer the

blood relationship between two people, the closer they are likely to be intelligence. Thus if we take

two unrelated people at random from population, it is likely that their degree of intelligence will be

completely different. If, on the other hand, we take two identical twins, they will very likely be as

intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar

intelligence, and this clearly suggests that intelligence depends on birth.

      Imagine now that we take two identical twins and put them in different environments. We might

send one, for example, to a university and the other to a factory where the work is boring. We would

soon find differences in intelligence developing, and this indicates that environment as well as birth

plays a part. This conclusion is also suggested by the fact that people who live in close contact with

each other, but who are not related at all are likely to have similar degree of intelligence.

1. The writer is in favor of the view that man's intelligence is given to him________.

A. at birth                            

B. through education

C. both at birth and through education      

D. neither at birth nor through education

2. If a child is born with low intelligence, he can_________.

A. become a genius

B. still become a genius if he should be given special education

C. not reach his intelligence in his life.

D. reach his intelligence limits in rich surroundings

3. The example of the twins going to a university and to a factory separately shows_________.

A. the importance of their intelligence    

B. the role of environment on intelligence

C. the importance of their positions      

D. the part that birth plays

4. The best title of the passage can be _________.

A. Surroundings    

B. Effect of education

C. Dependence on Environment    

D. Intelligence

题型:多选题

如果一个变量未经定义就直接使用,则该变量的默认类型为( )。

A. Variant

B. Byte

C. Boolean

D. Integer

题型:多选题

列车作业标准运行中掌握重点旅客动态,对需要帮助的无座重点旅客,利用()提供重点照顾,解决旅客困难。

A.多功能室

B.餐车席位

C.乘务员专用席位

D.乘警席位

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