需在体内转化后才能发挥药理作用的药物是： A．泼尼松 B．可的松 C．环磷酰胺 D．

阅读理解，根据所给首字母，按原文填空。

      I love to go on trips. Trips are fun. I want to go to Beijing. It is far from my home. Beijing is a big city. It's

the capital city of our country, China. It has big shops, restaurants and hotels. Tian'anmen Square is in Beijing.

It's very famous. The Palace Museum is in Beijing, too. It is very old and beautiful. Beijing is great. China is

great.

1. T____________ are very interesting.

2. My home is f____________ from Beijing.

3. The c____________ city of China is Beijing.

4. Beijing has big s____________, r____________ and h____________.

5. T____________ S____________ is in Beijing.

6. The P____________ M____________ is o____________ and b____________.

7. C____________ is great, B____________ is great, t____________.

已知有结构体：
struct sk
int a;
float b;
data,*p;
若有p=&data, 则对data的成员a的正确引用是( )。

A．(*p).data.a

B．(*p).a

C．p-＞data.a

D．data.a

地龙的药理作用不包括（）

A.镇静

B.抗惊厥

C.抑制免疫功能

D.解热

E.抗凝，促纤维蛋白溶解

在相同的自然条件下，形成不同农业生产结构的主要原因是（）。

A.人口

B.社会经济条件

C.消费习惯

D.工业发展水平及农业科技水平

某局域网用一台路由器互连4个子网。各子网的网络地址分别是193.22.56.0/26、193.22.56.64/26、193.22.56.128/26和193.22.56.192/26。使用RIP v1路由协议配置参数与RIP协议的网络地址，其正确的配置是______。

A．network 193.22.56.0 255.255.255.192
B．network 193.22.56.0 0.0.0.255
C．network 193.22.56.0 255.255.255.192
D．network 193.22.56.0