设计施工一体化单位集成了设计与施工两个角色内部的进度管理任务，是项目进度管理中(

一个底面直径为12厘米、高为18厘米的圆锥体铁块，完全浸没在一个装满水的底面半径为12厘米的圆柱形玻璃杯中，当铁块取出后，杯中水的液面会下降（）厘米。

A．1

B．1.5

C．6

D．4.25

下列月经病的治疗，错误的是（）

A.重在治本调经

B.分清先病和后病

C.急则治标，缓则治本

D.顺应不同年龄阶段论治

E.多用辛温暖宫之品

Become a confident speaker. How to improve your English speaking skills and make you able to communicate more easily and effectively? The following tips will help you to become a more confident speaker.

Practice where you can and when you can. And practice is good — whether you speak to someone who is a native English speaker or not.

It’s important to build up your confidence. If possible, use the simple sentence structure that you know is correct, so that you can concentrate on getting your message across.

Try to experiment with the English you know. Apply (应用) words and phrases you know to new situations. Native English speakers are likely to correct you if you use the wrong word. They usually don’t mind if you use wrong grammar.

Try to respond to what people say to you. You can often get clues to what people think by looking at their body language. Respond to them in a natural way.

Never translate everything into your own language. It takes you much time and you’ll find it difficult to find an English answer right away. You don’t know how to do well. The more you want to act well, the more slowly you act. This will make you hesitant.

If you forget a word, do what native English speakers do all the time, and say things that ‘fill’ the conversation. This is better than remaining completely silent. Try using ‘um’, ‘er’, if you forget the word.

Don’t speak too fast! It’s important to use a natural rhythm (节奏) in speaking English, but if you speak too fast it will be difficult for people to understand you.

Try to relax when you speak, and you’ll find that your mouth does most of the pronunciation work for you. Speak English at a normal speed.

Final tips: Try to become less hesitant. Don’t be shy to speak — the more you do it, the more confident you’ll become. Remember to be polite — use “please” and “thank you” if you ask someone to do something for you.

小题1:What is the text mainly about?

A．Good ways of studying English well.

B．Suggestions on becoming a confident speaker.

C．Things to pay attention to when speaking English.

D．How to correct your mistakes as you speak English.小题2:How many tips does the author offer in this text?

A．9.

B．10.

C．11.

D．12.小题3:In this passage, the underlined word “hesitant” in the sixth paragraph means “________”.

A．sure about what to do

B．fast to make a good decision

C．successful in answering questions

D．uncertain about how to express yourself小题4:This text is most probably written for ________.

A．English beginners

B．native English speakers

C．English teachers

D．language experts

张某向李某背书转让面额为10万元的汇票作为购买房屋的价金，李某接受汇票后背书转让给第三人。如果张某与李某之间的房屋买卖合同被合意解除，则张某可以行使下列哪一权利？

A．请求李某返还汇票

B．请求李某返还10万元现金

C．请求从李某处受让汇票的第三人返还汇票

D．请求付款人停止支付票据上的款项

为什么生产规模扩大到一定程度后会出现规模收益递减？