试题与答案

在日光灯电路中，并联一个适当的电容后，提高了线路功率因素，这时日光灯所消耗的有功功率

来源：www.tikuol.com
题型：单项选择题

题目：

在日光灯电路中，并联一个适当的电容后，提高了线路功率因素，这时日光灯所消耗的有功功率将（）。

A．减小

B．稍增加

C．保持不变

D．大大增加

答案：

被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0707/b01ef19232c287b051de2e5482a39e99.html

下面是错误答案，用来干扰机器的。

参考答案：E

考点：海船船员考试船舶正弦交流电船舶正弦交流电题库
试题推荐
题型：阅读理解

Girls in Japan love the month of March. March the third is Japanese Girls' Day, or people also call it the Doll(洋娃娃) Festival.

On this day, girls wear beautiful kimonos (和服). Their parents put lovely dolls on a shelf. They hope that the dolls can bring health and happiness to their girls. There are seven tiers (层) of dolls. Dolls of the king and queen are always at the top of the shelf.

Girls usually invite good friends to their homes on this day to celebrate(庆祝)it. They sit around the dolls, singing, dancing and talking. The next day parents have to put the dolls away quickly. According to Japanese tradition, if they don't do that, they may find it hard to marry off (嫁出) their daughters later in life.

小题1:When is the Doll Festival?

A．February 3rd.

B．March 3rd.

C．March 2nd.

D．May 3rd.小题2:What do girls wear on that day?

A．They wear short skirts.

B．They wear new T-shirts.

C．They wear school clothes.

D．They wear traditional (传统) Japanese clothes.小题3:What is on the top of the shelf?

A．Dolls of the king and queen.

B．Dolls of the parents.

C．Dolls of their daughters.

D．Dolls of the girls' friends.小题4:Why do parents put dolls on the shelf?

A．Because the dolls are very lovely.

B．Because their daughters ask them to do it.

C．Because the king and the queen want them to do it.

D．Because dolls can bring health and happiness to their daughters.小题5:Which of the sentences is NOT true?

A．The girls sing and dance around the dolls on that day.

B．The girls invite their friends to celebrate the festival together.

C．The shelf has seven tiers of dolls on it.

D．On March 3rd, parents should put the dolls away quickly.
查看答案
题型：单项选择题


以下提供若干个病例，每个病例下设若干道考题。请根据答案所提供的信息，在每一道考题下面的A、B、C、D、E五个备选答案中选择一个最佳答案。

女，21岁，因工作紧张，近1个月来自感压力重重，不能胜任工作，觉得自己一无是处，连累了父母，也对不起老师的培养，寝食难安，精力疲乏。在家欲开煤气自杀，被送入医院。入院当天又乘人不备打碎玻璃，用碎玻璃割腕自杀，后经抢救脱险，患者既往有青光眼史。

最可能的诊断是

A．应激障碍

B．抑郁症

C．恶劣心境

D．环形心境障碍

E．焦虑症
查看答案
微信公众账号搜索答案