sizeof(float)是( )。A.一个双精度型表达式 B.一个整型表达式

题型:单项选择题

问题:

sizeof(float)是( )。

A.一个双精度型表达式

B.一个整型表达式

C.一种函数调用

D.一个不合法的表达式

考点:计算机等级考试C++国家计算机二级(C++)83
题型:单项选择题

A Nobel Prize is considered by most people one of the highest international honours(荣誉) a person can receive. As you know, the prizes were started by a Swede called Alfred Nobel. He was born in Stockholm, the capital of Sweden. Alfred Nobel was a great scientist. He made two important inventions, and so he became very rich. Although he was rich, Nobel was not a happy man. He never married or had children. Also, he was a sick man during his large part of life. When he died at the age of 63, he left a fund of $9,000,000. The money was to be used in giving prizes to those who made great achievements in physics, chemistry(化学), medicine and literature(文学), and for world peace.

The first Nobel Prizes were given on December 10, 1901, five years after Nobel’s death. Since then many famous people from all over the world have been given Nobel Prizes for their achievements.

Each prize has three parts. The first part is a gold medal. Second, a winner of a Nobel Prize is given a certificate saying that he has been given the prize. The third part of the prize is a large amount of money-about $40,000.

Often a prize is given to just one person, but not always. Sometimes a prize is shared. It may be given to two or more people who have worked together. It is also sometimes true that a prize is not given at all if there is no great achievement. In 1972, for example, no Nobel Peace Prize was given.

小题1:When was Alfred Nobel born?

A.In 1938.

B.In 1833.

C.In 1896.

D.In 1906.[小题2:What kind of person would you say Alfred Nobel was?

A.He was a rich, happy and lucky man.

B.He was a poor, unhappy and unlucky man.

C.He was a rich, but unhappy and unlucky man.

D.He was a poor, but happy and lucky man.小题3:When he died, Nobel left a large amount of money ________.

A.to his wife

B.to his children

C.for helping the poor people in Sweden

D.for setting five prizes

题型:单项选择题
已知F1、F2为椭圆
x2
a2
+
y2
b2
=1
(a>b>0)的焦点;M为椭圆上一点,MF1垂直于x轴,且∠F1MF2=60°,则椭圆的离心率为(  )
A.
1
2
B.
2
2
C.
3
3
D.
3
2
题型:单项选择题

恩格斯说:“世界的真正统一性在于它的物质性。”下列能够充分说明这一论述的是(  )

①自然界是客观存在的物质世界    ②人类社会在本质上是物质的  

③意识是客观事物在人脑中的反映  ④意识的内容和形式都是客观的

A.①②③

B.①②③④

C.①②④

D.①③④

题型:单项选择题

宫内节育器原理错误的是()

A.直接杀死精子

B.子宫内膜长期受异物刺激,引起无菌性炎症反应,使白细胞、巨噬细胞增多,阻止受精卵着床

C.损伤内膜产生前列腺素,改变输卵管蠕动,使受精卵运行与子宫内膜发育不同步

D.子宫内膜受压缺血,激活纤维溶酶原,局部纤溶活性增强、致使囊胚溶解吸收

E.活性铜离子长期释放,使内膜组织代谢受干扰,不利于受精卵着床及发育

题型:单项选择题

分开过强型外斜视看远比看近大于等于()

A.15

B.20

C.25

D.10

E.15°

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