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问题 单项选择题

若某企业销售收入为2000万，销售成本为1500万，经营费用为300万，问营业利润率是多少（）。

A.0.0476

B.0.1

C.不确定

D.0.08

答案

参考答案：B

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（18）应选择（）

A.declined

B.proliferated

C.destroyed

D.produced
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单项选择题

技术交底的主要内容包括生产工艺、（）、规范要求、操作规程和质量标准要求等。

A、实施计划

B、环保措施

C、技术安全措施

D、吊装方法
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