关于船舶电缆选择的下列叙述,正确的是()。A.交流电制中若使用单芯电缆,只要截面积合

题型:单项选择题

问题:

关于船舶电缆选择的下列叙述,正确的是()。

A.交流电制中若使用单芯电缆,只要截面积合适,可从绞缆中拆下一股电缆即可

B.信号电缆可以与控制电缆、电源电缆共用一条多芯电缆

C.三相四线制的中线电缆截面积是相线电缆的50%

D.选择电缆时,除应满足载流值要求,其电压降亦应在允许的范围内

考点:海船船员考试船舶安全用电和安全管理船舶安全用电和安全管理题库
题型:单项选择题

DNA是怎样复制的,有何意义?

题型:单项选择题

挂线疗法术后处理中不正确的是:

A.保持大便通畅

B.便后用1:5000高锰酸钾液坐浴

C.内服透脓散

D.结扎橡皮筋较松时紧线

E.局部用生肌散纱条换药

题型:单项选择题

The other day I heard a few local musicians talking:

"I hate all the pianos in this town and I hate that rubbish they play on the radio. They cannot even understand rhythm (韵律)."

"Nobody wants to pay musicians anything. I’m sick of all the people who want you to play without paying you."

One younger musician said, "There are several clubs who want me to play for a few nights a month, and I’m trying to find other places to play. I’m also planning to join in several summer festivals this year."

I really liked what the younger musician said so I made friends with him.

Attitudes are important. Whether they’re positive (积极的) or negative (消极的), they’re all rubbing off on you. If you’re around people who are always complaining or blaming (责备) others, it is possible that you will start doing the same as well. If you spend lots of time with people who don’t support (支持) your dreams, it is time to take a look at the people you call "friends".

There is an easy exercise you can try. Make a list of the people who you often stay with, and simply stop spending time with the negative ones on your list. Set a new standard for yourself and don’t become friends with people who fall below that standard.

Of course, this exercise is entirely different from making friends only for the good of oneself. We really should try to help and spend time with those who are working towards a goal or dream.

小题1:The musicians’ conversation at the beginning is there to show that ______.

A.musicians’ living conditions are not good

B.people in that town have poor taste in music

C.young people are more likely to succeed

D.different people have different attitudes小题2:The underlined part "they’re all rubbing off on you" in Paragraph 6 means ______.

A.they’ll push you ahead

B.they’ll help you realize your dreams

C.they’ll keep you from moving on

D.they’ll have an influence (影响) on you小题3:By doing the exercise mentioned in Paragraph 7, you can ______.

A.improve your ability to make friends

B.make the right kind of friends

C.develop a better relationship with your friends

D.make some new friends with the same interests as you小题4:We can get the following information from the passage EXCEPT ______.

A.the younger musician is a positive person and would be a good friend

B.one should avoid (避免) making friends with people who have lots of

difficulties

C.the exercise can help you keep close to really helpful friends

D.one will start complaining if one spends too much time with negative people

题型:单项选择题

人们之所以要守法,是因为()

A.守法是法对公民提出的要求

B.人们对契约式的利益和信用的考虑

C.人们对法律制裁的惧怕

D.人们出于社会的压力、心理上的惯性和道德的要求

题型:单项选择题

注射于真皮与表皮之间,一次剂量在0.2ml以下()

A.静脉注射

B.皮内注射

C.动脉内注射

D.脊椎腔注射

E.皮下注射

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