若将一个二元运算符重载为类的成员函数，其形参个数应该是______个。

Westgard多规则质控方法每一规则的意义是什么?

年青男性，近2年反复出现尿频、尿急伴右腰部阵发性剧痛，并伴肉眼血尿，曾多次服用氟哌酸，治疗后症状减轻，但反复发作，为彻底治疗，哪项检查最重要（）

A.尿高渗培养

B.尿浓缩稀释试验

C.膀胱镜检查

D.腹平片和静脉肾盂造影

E.导尿后尿培养

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

杨过在全真的师傅叫（）