下列选项中，不属于著作权客体的作品有( )。A．讲演 B．计算机软件 C．电影剧本

有a、b、c、d四颗地球卫星，a还未发射，在地球赤道上随地球表面一起转动，b处于地面附近近地轨道上正常运动，c是地球同步卫星，d是高空探测卫星，设地球自转周期为24h，所有卫星均视为匀速圆周运动，各卫星排列位置如图所示，则有（  ）

A．a的向心加速度等于重力加速度g

B．c在4 h内转过的圆心角是π/6

C．b在相同时间内转过的弧长最长

D．d的运动周期有可能是23h

不符合急性红白血病（AML-M6）骨髓象的是（）

A.骨髓增生极度或明显活跃

B.红系和粒系细胞同时恶性增生

C.大部分病例以原红和早幼红细胞增生为主

D.幼红细胞有巨幼样变

E.部分原始细胞和幼稚细胞中可见Auer小体

对于n个结点的序列，利用直接插入排序的方法总的关键码的比较次数约为( )。

A．n

B．n2

C．log2n

D．n2/4

阅读理解。

     The word "conservation" has a thrifty meaning. To conserve is to save and protect, to leave what we

ourselves enjoy in such a good condition that others may also share the enjoyment. Our forefathers had

no idea that human population would increase faster than the supplies of raw materials: most of them,

even until very recently, had the foolish idea that the treasures were "limitless" and could "last forever".

Most of the citizens of earlier generations knew little or nothing about the complicated and delicate system

that runs all through nature, and which means that, as in a living body, an unhealthy condition of one part

will sooner or later be harmful to all the others.

     Fifty years ago, nature study was not part of the school work; scientific forestry was a new idea; wood was still cheap because it could be brought in any quantity from distant woodlands; soil destruction and

river floods were not national problems; nobody had yet studied long-term climatic cycles in relation to

proper land use; even the word "conservation" had nothing of the meaning that it has for us today.

     For the sake of ourselves and those who will come after us, we must now set about correcting the

mistakes of our forefathers. Conservation should be made part of everybody's daily life. To know abou

t the water table in ground is just as important to us as a knowledge of the basic math formulas. We need

to know why all watersheds (上游集水区) need the protection of plant life and why the running current

of streams and rivers must be made to give their full benefit to the soil before they finally escape to the sea. We need to be taught the duty of planting trees as well as of cutting them. We need to know the

importance of big, grown trees, because living space for most of man's fellow creatures on this planet is

figured not only in square measure of surface but also in cubic (立方体的) volume above the earth. In a

word, it should be our goal to restore as much of the original beauty of nature as we can.

1.The author's attitude towards the use of natural resources is _________.

A. positive

B. uninterested

C. optimistic

D. critical

2. According to the author, the greatest mistake of our forefathers was that _________.

A. they had no idea about scientific forestry

B. they had little or no sense of environmental protection

C. they were not aware of the importance of nature study

D. they had no idea of how to make good use of raw materials

3.To avoid repeating the mistakes of our forefathers, the author suggests that _________.

A. we plant more trees

B. natural sciences be taught to everybody

C. environmental education be directed toward everyone

D. we return to nature

4. How can you understand the underlined sentence in the last paragraph?

A. Our living space on the earth is getting smaller and smaller.

B. Our living space should be measured in cubic volume.

C. We need to take some measures to protect space.

D. We must preserve good living conditions for both birds and animals.

以下小儿生长发育规律中，哪项是错误的

A．2～12岁身长(cm)＝年龄×7+70(cm)
B．小于6月龄婴儿体重(kg)＝出生体重+月龄×0.7
C．生后第一年头部生长最快，脊柱次之
D．6岁时上下部量相等
E．青春期下肢增长最快