上证50股指期货报价的最小变动量是0．2点，合约乘数为300，则一份合约的最小变动金

阅读理解。

     Long, long ago there was no zero. To write the number sixty-three people wrote 63. To write six hundred

and three, people wrote 63. The space between six and three was there to mean." not any"tens. Sometimes

people did not remember the space. It was hard to see and read.

     Later people used a dot to hold the space. Six hundred and three looked like this 6.3. But the dot was hard

to see. So people put a circle around it like this 6⊙3.Then people could see the dot. They remembered the space. at last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to

be used. 

     Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?

1. Long, long ago, people didn't know how to ______.

A. write

B. write zero

C. write numbers

D. sixty-three

2. Long, long ago if they wrote two hundred-eight, people wrote ______.

A. 28

B. 28

C. 228

D. 208

3. Later ______ was used to mean space.

A."not any"

B. letter "0"

C. zero

D. a dot

4. People used circles ______.

A. to remember ways

B. to remember numbers

C. not to forget the space

D. to mean nothing

5. The story tells us ______.

A. how zero came to be used

B. how to write zero

C. what`s the use of zero

D. that zero means a dot, a circle or space

人体内含量最多的营养素是（）

A.蛋白质

B.脂类

C.糖类

D.维生素

E.水

黄芪的气味是（）

A.气微，味甜而特殊

B.气微，味微甜，嚼之微有豆腥气

C.气辛香，味辛辣、麻舌

D.气微，味微苦而酸

E.香气浓郁，味苦、辛，稍麻舌，微回甜

皮亚杰将儿童道德判断的发展分为三个阶段。下列说法错误的是( )。

A．前道德判断阶段发生在4～5岁前，这一阶段的儿童只是接受行为的结果，还不能做出道德意义上的判断

B．他律道德阶段的儿童只注重行为规则和行为后果，不考虑行为意向和动机

C．自律道德阶段的儿童不盲目服从权威，既考虑行为结果又考虑行为动机

D．自律道德阶段的儿童服从道德现实主义

患者女，38岁，间断右大腿下端胀痛2年。X线片提示右股骨下端溶骨性破坏，累及骨端，呈偏心性膨胀性改变，无明显骨膜反应。

该肿瘤的病理表现不包括（）

A.可见圆形或多角形单核细胞

B.可见多核巨细胞

C.可见异常核分裂象

D.多核巨细胞是其主要肿瘤细胞

E.常可继发动脉瘤样骨囊肿