石灰岩的主要成分是白云石。

目前该病人最佳的治疗方法应该是

A．保守治疗

B．膝关节表面置换术

C．膝关节融合术

D．膝滑膜切除术

E．膝关节镜下关节清理术

以提供能量为主的食物为纯能量食物，包括( )。

A．动植物油

B．淀粉

C．食用糖

D．高度酒

E．大豆制品

唐朝诗人孟郊在《织妇辞》中曾有"如何织纨素，自著蓝缕衣"的诗句，而韦应物的《杂体五首》中有"舞罢复裁新，岂思劳者苦"的句子。对比这两句诗，可看出

A．丝织业不够发达，产量较少

B．当时的丝织品主要供上层社会消费

C．丝织品主要出口地中海等欧洲地区

D．丝织品为织者自己所用

Do you blank out or feel so nervous in exams that you have trouble writing answers to questions that you knew just last night? If so, you likely have a case of test anxiety.

But, don't be afraid. By recognizing the problem, you are taking the first step towards overcoming it.

Believe it or not, a touch of nervousness can sharpen your mind, allowing you to perform more quickly. This is because under stress, the body releases (释放) the hormone adrenaline (肾上腺素), which prepares it for something important that will happen. However, too much anxiety can result in sleeplessness, loss of appetite（胃口）before tests, and poor performance. Some people might feel hot and tired. With great anger they often shout or complain for no reason.

If you worry a lot or are a perfectionist, you are more likely to have trouble with test anxiety. Those who have prepared poorly for a test or have had negative experiences taking tests may also experience test anxiety.

When you feel a storm of anxiety coming on, stop what you're doing and make your mind a blank. If possible, actually tell yourself to 'STOP!' This will get your mind off the stress.

Then think of being at a place of comfort and let your body relax. As you continue the test, find questions you know the answers to and answer them first. This will help restore your confidence. 

Important of all, talk to yourself using positive language. Make it a habit to replace each negative thought with a logical reason. For example: "I've studied hard and I know the material, so I'm ready to do the best I can."

Another thing you can do is to learn to accept mistakes. In fact, they can be valuable learning opportunities.

Last but not least, start test preparation early - three to five days ahead of the quiz or test. After all, good study habits and skills - for example, time management and note-taking - will give you the feeling that you are in control.

小题1: The best title of the passage is probably______

A．How to beat test anxiety.

B．What is test anxiety.

C．The effects of test anxiety.

D．Experience test anxiety will help you.小题2:Those ______ more easily suffer from test anxiety.

A．who are not well prepared for a test.

B．who wants everything to be perfect and highest.

C．who have experiences of failure in exams.

D．who do poorly in their study.小题3:The author mentions _____pieces of suggestions about how to get over test anxiety.

A．3

B．4

C．5

D．6小题4:What can we infer from the passage？

A．Mistakes sometime can be valuable and helpful.

B．Those who have prepared poorly for a test cause test anxiety easily.

C．Full test preparations will give you the feeling that you are in control.

D．A touch of anxiety can have a positive effect.小题5:The underlined word “hot” in Paragraph3 means        .

A．disappointed

B．angry

C．active

D．running a high body temperature

富燃料燃烧火灾火源分带有哪些？