下列有关生态系统的叙述正确的是 A．生态系统就是生活在一定地域内各种生物的统一整

关于延长工作时间的工资报酬，说法错误的是（）。

A.安排劳动者延长工作时间的，支付不低于工资的200%的工资报酬

B.休息日安排劳动者工作，可以安排补休的，支付不低于工资的150%的工资报酬

C.休息日安排劳动者工作又不能安排补休的，支付不低于工资的200%的工资报酬

D.春节期间安排劳动者工作的，支付不低于工资的300%的工资报酬

E.教师节期间安排教师授课的，支付不低于工资的300%的工资报酬

鼻咽癌放疗原发灶根治剂量一般应给予()

A．30Gy

B．40Gy

C．50Gy

D．70Gy

E．80Gy

E

Among the four skills in learning English ,which of these is the “Odd-Man-Out”?The answer is speaking. The other three you can do alone on your own. But you can't really speak alone! Speaking to yourself can be “dangerous” because men in white coats may come and take you away!

Where can you find people to speak English? And how can you practise speaking when you are alone?At school if you pay to go to a language school ,you should use the chance to speak .If your teacher asks you to speak in pairs or groups with other students ,try to say as much as possible. Don't worry about your mistakes. Just speak!

Conversation Clubs　Many cities around the world have conversation clubs where people can exchange one language for another .Look in your local newspaper to find a conversation club near you .They are usually free although some may charge a small entrance fee.

Shopping　Even if you don't want to buy anything ,you can ask questions about products that interest you in a shop.“How much does this cost?” “Can I pay by cheque?” Often you can start a real conversation—and it costs you nothing!

Cafe and Bars　There are often American, Britain, Irish and Australian bars in many large cities .If you can find one, you'll probably meet many people speaking English as a first or second language.

Language is all around you　Everywhere you go, you find language .Shop names, street names ,advertisements ,notices ,and car numbers....When you walk down the street ,practise reading the words and numbers that you see .Say them to yourself .It's not exactly a conversation ,but it will help you to “think” in English .But don't speak too loud!

Songs and Video　Repeat the words of an English-language song singing with the music until it becomes automatic. It's good practice for your memory and for the mouth muscles that you need for English.

Above all ,speak as much as possible! Make as many mistakes as possible! When you know that you have made a mistake, you know that you have made progress!

57．What does “Odd-Man-Out” probably mean according to the passage?

A.Someone or something appearing different from others.

B.Someone or something standing out of the group.

C.Someone or something arranged in pairs.

D.Someone or something easily mistaken for another.

58．What might happen if you speak to yourself loudly in public?

A.The police will take you away and punish you.

B.The doctors will force you to stay in hospital.

C.You will have to pay to escape being punished.

D.You will be forbidden to be member of the club.

59．Why does the writer say “Make as many mistakes as possible”?Because _______.

A.everyone will make mistakes in learning English

B.everyone will meet people speaking English with some mistakes

C.making mistakes is a must in making progress in learning English

D.making mistakes can make one realize the importance of speaking

60．According to the passage,which way is not likely to be accepted by English beginners?

A.Recite poems loudly along the riverside.

B.Listen to some English pop songs and video.

C.Find an Englishman to speak English with.

D.Take to the TV showing programmes at home.

善治疗疮的药物是（）

A.蒲公英

B.白头翁

C.败酱草

D.紫花地丁

E.鱼腥草

若检测条件相同时，对铁质试件（原子序数26）中一缺陷内含下列哪种材质，其影像对比度最佳？（）

A、锂（原子序数2）

B、钠（原子序数11）

C、铝（原子序数13）

D、钙（原子序数20）