有一旅客携带了30公斤行李从南京禄口国际机场乘飞机去天津，按民航规定，旅客最多可免费携带20公斤行李，超重部分每公斤按飞机票价格的1.5%购买行李票，现该旅客购买了120元的行李票，则他的飞机票价格应是（   ）．

如图,所示的电路中，电源电压保持不变，开关S闭合后，滑片P向右滑动时(     )

如图,所示的电路中，电源电压保持不变，开关S闭合后，滑片P向右滑动时(     )

如图,所示的电路中，电源电压保持不变，开关S闭合后，滑片P向右滑动时(     )

阅读材料，回答问题。

材料一在他们眼里，“财富就是金银，金银就是财富，要提高国民财富，就要增加国家拥有金银的数量”，他们“主张通过贸易顺差获得金银财富”。

——郭冠清《西方经济思想史导论》

材料二国有企业往往左右一国的经济与社会的发展，英国国企经历了如下变化：

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    The Internet has opened up a whole new online world 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. {#blank#}1{#/blank#} 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. {#blank#}2{#/blank#} 

    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. {#blank#}3{#/blank#} 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.

    {#blank#}4{#/blank#} 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. {#blank#}5{#/blank#} 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 income. Unless you know the person very well, and you are both comfortable with sharing personal information, don't ask such questions.

A. It's natural that there are some people who speak rudely or make mistakes online.

B. Repeat the process till you feel sure that you'd feel comfortable saying the words to the person's face.

C. Everyone was new to the network once.

D. The basic rule is simple: treat others in the same way you would want to be treated.

E. When you send short messages to a person online, you must say something beautiful to hear.

F. You should either ignore the person, or use your chat software to block their messages.

G. If you do decide to tell someone about a mistake, point it out politely.