在部门统计调查中，调查对象属于本部门管辖系统外的，其调查计划由( )审批。A．国家

阅读理解。

     My father has a great sports collection. He loves sports very much. And he loves all balls. He

likes playing basketball and volleyball. And he likes playing baseball and tennis. He also likes watching

ball games. How many balls does he have? He has 15 basketballs, 12 baseballs, 10 tennis rackets, 8

volleyballs and 14 baseball bats and many other balls.

1. ______ has a great sports collection.            

A. My father                      

B. My grandfather

C. My uncle                      

D. My friend

2. He loves ______ very much.       

A. sports    

B. balls    

C. music    

D. A and B

3.He likes playing ______ and ______.                                                                                         

A. volleyball, baseball          

B. soccer, basketball            

C. ping-pong, baseball          

D. soccer, ping-pong

4. He has ______ tennis rackets.     

A. 15          

B. 12          

C. 10        

D. 8

5. How many soccer balls does he have?    

A. 5.          

B. 12.      

C. 14.      

D. We don't know.

计算机网络机房建设中，为了屏蔽外界干扰、漏电及电火花等，要求所有计算机网络设备的机箱、机柜、机壳等都需接地，该接地系统称为安全地，安全地接地电阻要求小于（）。

A．1Ω 

B．4Ω 

C．5Ω 

D．10Ω

对一项科学工作的评价不能简单地归结为一个数字的大小，任何数字都不能取代同行评议及对该工作科学意义的具体分析和历史检验。然而，不好的评价指标有可能误导评审人员，导致错误的结果；而好的评价指标可以提供更准确的信息，使相应的评审更加客观和公正。
这段文字意在强调，对科学工作的评价（）。

A．应该是主观评价和客观评价的统一

B．关键在于建立科学的评价指标体系

C．不应以数字结论作为主要参考依据

D．需要综合考虑多种因素才能实现公正

在路由器的“Router (config-if)#”模式下，执行命令end将切换到______模式。

A．Router＞
B．Router#
C．Router (config)#
D．Router (config-line)#