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Many people find exams a frightening e 小题1:___. Sitting down for an exam when every body is so q 小题2:and serious makes most people nervous. But there are a few things you can do to r 小题3:before you start. At the b小题4:__ of an exam, read all the instructions c小题5:so you know exactly what you have to do. Work out how much time you can spend on each question. if you feel yourself getting nervous at any time, stop w 小题6:you are doing and take a few deep breaths.

However, the most useful things are always done b 小题7:you get to the exam room. You may do some practice tests and review your lessons in a right way. And then the real thing will seem much e 小题8:. you also need to remember that exams are not the most important things in the world – even though you f 小题9:, you can do better next time. The m 小题10:exams you take, the less worried you will be.

股骨干闭合性骨折行胫骨结节骨牵引，其牵引重量一般为（）

A.体重的1/2～1/3

B.体重的1/3～1/4

C.体重的1/4～1/5

D.体重的1/5～1/6

E.体重的1/7～1/8