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问题 多项选择题

高压直流输电的适用范围有哪些。（）

A.远距离大功率输电

B.海底电缆送电

C.不同频率或同频率非周期运行的交流系统之间的联络

D.配合新能源供电

答案

参考答案：A, B, C, D

问答题

Dina and her friends Tim and Mary consider creating DTM Construction Limited, a private limited liability company, for the purposes of carrying out construction works in Pafos. Before incorporation of DTM Construction Limited, Dina signs on behalf of DTM Construction Limited a contract with Panos for constructing a building in Lefkosia. After one month, DTM Construction Limited is registered with the Registrar of Companies. DTM Construction Limited then refuses to carry out any work for Panos.Required:Advise Panos. (10 marks)
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判断题

HPLC仪检测器的作用是将流出物中的样品的组成和含量的变化转化为可供检测的信号，完成定性定量分析的任务。
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