电源分配系统的卸载不包括下面哪一种()。A.结构卸载 B.指令卸载 C.过热卸载 D

题型:单项选择题

问题:

电源分配系统的卸载不包括下面哪一种()。

A.结构卸载

B.指令卸载

C.过热卸载

D.过流卸载

考点:民用航空器维修执照考试B737600700800系列飞机试题B737
题型:单项选择题
计算:
2a
3b
×
b
4a3
÷
1
a3
=______.
3x
x-4y
+
x+y
4y-x
-
7y
x-4y
=______.
题型:单项选择题

选出下列画线词语意思不同的两项[ ]

A.辍耕垄上——又间令吴广次所旁从祠中

B.扶苏以谏故,上使外将兵——骑千余,卒万人

C.大王尝闻布衣之怒夫——臣本布衣,躬耕于南阳

D.卜者知其意——皆目陈胜

题型:单项选择题

假设某商品的需求曲线为Q=3-2P,市场上该商品的均衡价格为1,那么,当需求曲线变为Q=5-2P后,均衡价格将( )。

A.大于1

B.小于1

C.等于1

D.小于或等于1

题型:单项选择题

Thanks to the Internet, a whole new online world has been opened up for us to meet, chat and go where we’ve never been before.

But just as in face to face communication, there are some rules of behavior that should be followed when on line.  The basic rule is simple: treat others in the same way you would want to be treated.   Imagine how you’d feel if you were in the other person’s shoes.

For anything you’re about to send: ask yourself, “Would I say this to the person’s face?” if the answer is no, rewrite and reread.  Repeat the process till you feel sure that you’d feel comfortable saying words to a person’s  face.

If someone in the chat room is rude to you, your instinct (本能) is to fire back in the same manner. But try not to do so.  Just pay no attention to it, or block his message.  If it was caused by a disagreement with another member, try to fix the situation by politely discussing it. Remember to respect the beliefs and opinions of others in the chat room.

Everyone was new to the network once.  Offer advice when asked by newcomers, as they may not be sure what to do or how to communicate. When someone makes a mistake, whether it’s a stupid question or an unnecessarily long answer, be kind about it. If it’s a small mistake, you may not need to say anything. Even if you feel strongly about it, think twice before saying anything. Having good manners yourself doesn’t give you license to correct everyone else.

If you do decide to tell someone about a mistake, point it out politely At the same time, if you find you are wrong, be sure to correct yourself and apologize to those that you have offended.

It is not polite to ask others personal questions such as their age, sex and marital status. Unless you know the person very well, and you are both comfortable with sharing personal information, don’t ask such questions.

小题1:When you send short messages to a person, you must _______.

A.make sure they mean no harm

B.read them again and again

C.say something good to hear

D.repeat them later to his face小题2:If you are hurt in the chat room by others, you should_____.

A.fight back in the same way

B.take it seriously

C.be angry at them

D.have none of them小题3:If a newcomer who communicates online makes a mistake, you ___.

A.should point it out immediately

B.can say something about it

C.have the duty to correct it

D.shouldn’t give advice unless required小题4:The passage mainly tells us _______.

A.rules of the chat room

B.some rules of Internet communication

C.ways of sending messages

D.ways of making online friends

题型:单项选择题

正丁烯在铁酸盐尖晶石催化剂上氧化脱氢制丁二烯,需要控制的操作参数有哪几个?各个参数对反应有什么影响?

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