男，22岁。反复咽痛伴腰酸、发作性单纯血尿2年余。查体：BP 114/72 mmHg

关于电场线的说法，正确的是 (   )

A．电场线是在电场里实际存在的线

B．电场强度方向总是跟电场力方向一致

C．电场线上任一点切线方向总是跟置于该点的正电荷受力方向一致

D．电场中任何两条电场线都不可能相交

什么叫采油指数？

()一般由法律规定或同业协会制定，是投保人或被保险人必须遵守的条款。

A.基本条款

B.特殊条款

C.附加条款

D.保证条款

When you want to go shopping, decide how much money you can spend on new clothes． Think about the kind of clothes you really need． Then look for those clothes you really need． Then look for those clothes on sale．

There are labels(标签) inside all new clothes． The labels tell you how to take care of your clothes． The label for a shirt may tell you to wash it in warm water． A sweater label may tell you to wash in cold water． The label on a coat may say “dry clean only”, for washing may ruin this coat． If you do as the directions (说明)on the label, you can keep your clothes looking their best for a long time．

Many clothes today must be dry cleaned． Dry cleaning is expensive． When buying new clothes, check to see if they will need to be dry cleaned． You will save money if you buy clothes that can be washed．

You can save money if you buy clothes that are well made． Well-made clothes last longer． They look good even after they have been washed many times． Clothes that cost more money are not necessarily(不一定) better made． They do not always fit better． Sometimes less expensive clothes look and fit better than more expensive clothes．

小题1:If you want to save money, you had better buy clothes that __ ．

A．don’t fit you

B．don’t last long

C．need to be dry cleaned

D．can be washed小题2:The labels inside the clothes tell you______．

A．how to keep them looking their best

B．how to save money

C．whether they fit you or not

D．where to get them dry cleaned小题3:The first thing for you to do before you buy clothes is __ ．

A．to look for well-made clothes

B．to see how much money you can spend on it

C．to know how to wash them

D．to read the labels inside them小题4:We learn from the passage that cheaper clothes __ ．

A．are always worse made

B．must be dry cleaned

C．can not be washed

D．can sometimes fit you better小题5:The best title for the passage should be __ ．

A．Buy Less Expensive Clothes

B．Taking Enough Money When Shopping

C．Being a Clever Clothes Shopper

D．Choosing the Labels inside New Clothes

混凝土工作性通常认为它包含（）、（）、（）和（）。