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问题 选择题
He studied hard at school when he was young,_____ leads to his success in his later life.

A. what
B. which
C. that
D. so that
答案

答案：B

改错题

短文改错。

    I often quarrel about my mother over whether I can watch TV after school. She holds view that senior one

students have to make fully use of every minute to work hard at their lessons. It seems to me that once I am

allowed to do that. I will unable to control myself and forget all about my study. She also thinks it is bad for

my eye. But I really can not accept her ideas. In my opinion, watch TV can set my mind at rest after a day's

a hard works. Besides, it is important for us to know what had happened at home and at abroad. Thus, we

shouldn't be forbidden to watch TV.

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单项选择题

SNMP是TCP/IP网络中的使用的网管协议，其中，SNMPv1是一个不安全的协议，管理站(Manager)与代理(Agent)之间通过 (36) 进行身份认证，由于认证信息没有加密，所以是不安全的。 SNMPv3定义了基于用户的安全模型USM，其中的认证模块结合 (37) 算法形成认证协议，产生一个96位的报文摘要。SNMPv3还定义了基于视图的访问控制模型VACM。在这个模型中，用户被分成组，属于同一组的用户可以有不同的安全级别，其中 (38) 是最高安全级别。RPC1757定义的 RMON管理信息库是对MIB-2的扩充，其中的统计组记录 (39) 的管理信息，而矩阵组则记录 (40) 的通信情况。

（38）是（）

A.authPriv

B.authNOPriv

C.noAuthNoPriv

D.all
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