题目内容

当数组顺序存储完全二叉树的各结点,当i>0 K i≤( )时结点i的左子树是2i结点,否则此结点没有左子树。

A. n/2
B. (n-1)/2
C. n-1
D. n+1

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水泥土墙的适用条件中,水泥土桩施工范围内地基土承载力不宜大于()kPa。

A. 150
B. 160
C. 170
D. 180

路由汇聚(Route Summarization)是把小的子网汇聚成大的网络,下面4个子网:172.16.193.0/24、172.16.194.0/24、172.16.196.0/24和172.16.198.0/24,进行路由汇聚后的网络地址是()

A. 172.16.192.0/21
B. 172.16.192.0/22
C. 172.16.200.0/22
D. 172.16.224.0/20

Here I want to try to give you an answer to the question: what personal qualities are (1) in a teacher Probably no two people would (2) exactly similar lists, but I think the following would be generally (3) . First, the teacher’ s personality should be pleasantly (4) and attractive. This does not rule out people who are physically (5) , or even ugly, because many such have great personal (6) . But it does rule out such types as the (7) , melancholy, frigid, sarcastic, frustrated, and over bearing: I would say too, that it (8) all of dull or purely negative personality. Secondly, it is not merely desirable (9) essential for a teacher to have a genuine (10) for sympathy -- a capacity to tune (11) to the minds and feelings of other people, especially, to the minds and feelings of children. (12) related with this is the capacity to be (13) --not, indeed, of what is wrong, but of the frailty and immaturity of human nature which (14) people, and again especially children, to make mistakes. Thirdly, I (15) it essential for a teacher to be both intellectually and morally honest. This does not mean being a saint. It means that he will be aware of his intellectual strength and (16) , and will have thought about and decided upon the moral principles by which his life shall be (17) . There is no contradiction in my going on to say that a teacher should be a (18) of an actor. That is part of the technique of teaching, which demands that every now and then a teacher should be able to (19) an act--to enliven a lesson, correct a fault, or (20) praise. Children, especially young children, live in a world that is rather larger than life. 11()

A. over - exciting
B. over - excitable
C. over - irritable
D. over - sensitive

年剩余价值率的提高,意味着实际发挥作用的可变资本增多了,雇佣工人的劳动量增多了,剩余价值量增多了。由此而论()。

A. 年剩余价值率的提高,必然意味着剩余价值率的提高
B. 和剩余价值率一样,年剩余价值率也表现着资本家对工人的剥削程度
C. 年剩余价值率的提高,不必然地表现为剥削程度的提高,但却表现着剥削量的增多
D. 年剩余价值率不表现剥削程度,却表现着资本增值的程度

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