搜题请搜索小程序“爱下问搜题”
问题 单项选择题

根据中国个人所得税法实施条例的规定，对教育事业、公益事业和科研组织有关的捐赠可从所得中减除，减除上限为每个纳税人所申报应税所得额的( )。

A．20%

B．25%

C．30%

D．50%

答案

参考答案：C

问答题 论述题

简述人文地理学的研究方法。
查看答案
单项选择题 共用题干题

Astute service providers realize that the continued support of legacy X.25 and asynchronous network element using separate operations network is cost(16).For example,the maintenance of multiple networks can require additional staff. Often, this staff must be trained on multiple vendor technologies, sometimes requiring parallel groups specializing in each (17) .Hence, additional maintenance procedures must be maintained and administrative records are (18) .The duplication of transport facilities to carry (19)network traffic is an inefficient use of resources. And not surprisingly, more technologies installed in a central office means the necessity for more physical space, and an increase in power connections and power consumption migration of these (20) network elements to IP-based DCns is alogical strategy.

空白处（17）应选择（）

A.line

B.platform

C.sever

D.switch
查看答案