试题与答案

目前世界上已运行的直流输电工程大多为（）直流输电系统。A.多端 B.两端 C.背靠背

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题型：单项选择题

题目：

目前世界上已运行的直流输电工程大多为（）直流输电系统。

A.多端

B.两端

C.背靠背

D.轻型

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B解析：远志既能安神，又善祛痰而开窍；治疗心神不安或痰阻心窍之癫痫发狂、神志恍惚。故选B。

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