以下关于IGRP的说法中正确的是：（）A、默认情况下，在帧中继网

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问题单项选择题

以下关于IGRP的说法中正确的是：（）

A、默认情况下，在帧中继网络中运行IGRP协议，启用水平分割功能

B、IGRP支持多条路径负载平衡

C、在一个1500字节中的路由更新数据包中最多包含有104条路由

D、触发更新定期发送

答案

参考答案：A

填空题

单词拼写。

1. Fresh fruit, especially oranges and kiwis, c___________ plenty of Vitamin C.

2. He fought bravely in many wars and g___________ respect of the people and country.

3. In order to get f__________ with the new neighbour, I have decided to pay a visit to his house.

4. For the last fifty years, a number of man-made satellites have been sent up to e_________ space.

5. After having a healthy diet, WangPeng became s____________ than ever before.

6. It is against law to read other's personal letters without __________(许可,允许).

7. In our class, when the bell rang and the teacher closed his book, it was a ____(信号)for everyone

to stand up.

8. The Internet is now widely used. ________ speaking (就我个人而言), I almost can not live without it .

单项选择题

下列关于钠泵的叙述，错误的是

A．是镶嵌在膜上的特殊蛋白质
B．具有ATP酶的作用
C．可逆浓度差主动转运Na+和K+
D．将细胞内K+泵出，将膜外的Na+泵入
E．可维持膜内外Na+、K+的不均匀分布