阅读理解。 Health is important for us. 'But

题型:阅读理解

问题:

阅读理解。

     Health is important for us. 'But how can we keep healthy? First, you should eat vegetables and fruit

four or five times a week. Then you'd better eat some tofu products (制品) every day because it's good

for people, both young and old. Milk and yogurt (酸奶酪)are also necessary, especially for women. So

you should have milk and yogurt twice a day. It can help you to be strong. Next, doing more exercises is

better. You can do morning exercises or evening exercises. After supper you'd better take a walk.

1. You should eat ______ four or five times a week.

A. fish and fruit

B. vegetables and mutton

C. tofu

D. vegetables and fruit

2. Tofu products are good for ______.

A. young people

B. old people

C. young and old

D. only students

3. The word especially means "______" in Chinese.

A.重要的

B. 尤其

C除了

D. 另外

4. You should have milk and yogurt ______.

A. four times a day

B. five times a day

C. twice a day

D. twice a week

5. Thepassagemainly (主要地) talks about ______.

A. how to keep healthy

B. what health is

C. why health is important

D. how often you can eat tofu products

考点:健康环保类阅读
题型:阅读理解

三极管各电极的电流分配:集电极电流等于基极电流与发射极电流之和。()

题型:阅读理解

慢性粒细胞性白血病的实验室检查特点是()。

A.骨髓细胞内可见Auer小体

B.中性粒细胞碱性磷酸酶积分增高

C.Ph染色体阳性

D.糖原染色阳性

E.非特异性酯酶染色阳性,可被NaF抑制

题型:阅读理解

写作题:

阅读下面材料,根据要求作文。

你的教鞭下有瓦特,你的冷眼里有牛顿,你的讥笑中有爱迪生。你别忙着把他们赶跑。你可不要等到坐火轮、点电灯、学微积分,才认识他们是你当年的小学生。

要求:用规范的现代汉语写作。自定立意,自拟题目,自选文体,不少于1000字。

题型:阅读理解

已知C3N4晶体具有比金刚石还大的硬度,且构成该晶体的微粒间只以单键结合。下列关于C3N4晶体的说法错误的是______

A.该晶体属于原子晶体,其化学键比金刚石更牢固
B.该晶体中每个碳原子连接4个氮原子、每个氮原子连接3个碳原子
C.该晶体中碳原子和氮原子的最外层都满足8电子结构
D.该晶体与金刚石相似,都是原子间以非极性键形成空间网状结构

题型:阅读理解

()承担机车重量、产生、传递机车牵引力和制动力

A.车体

B.转向架

C.车体支承装置

D.牵引缓冲装置

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