题目

下列实验操作正确的是（ ） A . 粗盐提纯蒸发时，待水分完全蒸干后停止加热 B . 过滤时，漏斗下口尖端紧贴烧杯内壁 C . 蒸馏时，冷却水应从冷凝管上口进下口出 D . 分液操作时，上层液体应从分液漏斗下口放出 答案：BEven if you are naturally shy, these three tricks will help you to quickly build a new social circle in any new city.1. Take pictures.One of the great things about taking pictures at an event or party is that it gives you an excuse to get in touch with the person later. Everybody loves seeing pictures of themselves, and it’s very easy after taking a picture to say “If you’d like I can email it to you”. This can be the seed that leads to new connections. The next time you hear about a fun event, email your new contacts to let them know about it.2. Eat alone in public.You might feel self-conscious eating by yourself but it has an important benefit: you are much easier to approach when you are alone. People may be afraid of interrupting you or being rude if you are in a conversation with someone else. Bring a book or newspaper to read (this will make you feel less self-conscious). Plus, having an interesting book with you will give others an excuse to start a conversation if they’ve read it.3. Join a class, sports team, or club.Yoga, salsa dancing, volleyball, Toastmasters (a public speaking club), a class for work, etc. Take up a new hobby or continue an old one!These are all great places to meet new people, primarily because you will be forced to see the same people over and over again in the class. You will automatically make friends with them if you have a common interest and are forced to see each other again.Tips:* In the beginning, never turn down an invitation from someone, even if it’s something you wouldn’t normally do.* Email your new friends with fun things to do instead of always asking what their plans are. If they have a better plan you can drop yours and join them. This will help establish you as someone who is contributing value instead of just taking it (people want this in a friend).* Don’t let little things in life upset you or be a negative person. People don’t want to be around someone like that!1.According to the text, which of the following is NOT mentioned as an advantage of joining a class?A.It helps you find out people who share a common interest with youB.It helps you find out your interest and take up a new hobbyC.It offers an opportunity to meet the same people repeatedlyD.It is a good way to meet new people and make friends in a new city2.Which of the following pieces of advice is a tip from the text?A.Try to be outgoing and talkative instead of being shyB.Never turn down an invitation from your friendsC.Offer suggestions on how to spend time togetherD.Always give a positive response to any request3.By writing the text, the author intends to tell us ________A.why you should change when you move to a new cityB.how you can make new friends in a new cityC.why you should make new friends in a new cityD.how you can keep in touch with strangers