AD289机器跨网段实现SMB扫描需要设置哪些（） A.网段路由可以实现互PING

设有消火栓系统的场所，其灭火器配置数量可相应减少（）。

A、10％

B、20％

C、30％

D、50％

张某诉李某一案于2002年7月25日一审法院判决后，由于山洪暴发交通中断被告李某无法邮寄或者直接递交上诉状。直到2002年8月15日交通恢复，李某想向法院申请顺延上诉期限，他应当在什么时间内提出申请

A．8月22日内

B．8月25日内

C．8月30日内

D．9月14日内

Visitors to this country are normally admitted for six months, but foreign students can usually stay for one year. They must (52) an educational institution, and they are required to study for a (53) of fifteen hours a week on a daytime course. Prospective students have to show that they can afford their studies, and that they have sufficient (54) resources to support themselves (55) in this country.

In order to work here the foreigner needs a work permit, (56) must be applied for by his prospective employer. The problem here is that the Department of Employment has the right to grant or (57) these permits, and there is little that can be done (58) it; it would be extremely unwise for a foreign visitor to work (59) a permit, since anyone doing so is liable to immediate deportation (驱逐出境). There are some people from the European countries, who are often given (60) residence permits of up to five years. Some other people, such as doctors, foreign journalists, authors and others can work without permits, and foreign students are normally allowed to (61) part-time jobs while they are studying here.

56().

A.receive 

B.refuse 

C.oppose 

D.accept

10kv自动闭塞电力线路正三角排列时，线间距离不应小于（）。

A.800mm

B.1000mm

C.1200mm

D.1300mm

向为，先从里向外流过一级滤芯，再从外向里流过二级滤芯。