信用等级评价法通常按企业提供给客户的应收账款可能发生的（） A.收账率划分等级 B.

化学与人体健康的关系十分密切．下列做法中，不会危害人体健康的是（　　）

A．服用兴奋剂以提高运动成绩

B．用霉变花生压榨食用油

C．用“干冰”冷藏食品

D．用甲醛溶液浸泡海鱼

小题1:  Such as runny noses, sore throats, nothing quite like the common cold to make you feel miserable．But experts believe that there is no link between cold weather and catching colds． 小题2:Internal Medicine expert, Dr Meenakshi Jain of Max Hospital says, “One reason could be that people are likely to stay indoors, so the virus can spread easily．小题3: ”

The common cold is a viral infection that can be caused by any of up to 250 strains of virus, the most common group of which are the rhinovirus that hit the nose．

小题4:  “They are transmitted through the nose respiratory passages, by touch, and by contact with airborne particles that are created by sneezing or coughing,” says Dr Jain．

There is no cure for the common cold and antibiotics are of no help．However, there are some precautions which can help:

      小题5: In this case, you can protect your hands from getting germs．

Don’t touch your eyes, nose and mouth, which can limit your chances of infection．

Don’t share drinking glasses or utensils with anyone as this will prevent the spread of the virus．

Make sure to eat enough fruits to boost your immune system．

A．Also the virus thrives in humidity．

B．Drink lots of fluids to avoid dehydration．

C．They are responsible for anywhere between a third and half of all common colds．

D．Get enough sleep and you’ll certainly feel better． E．So why are we particularly vulnerable（脆弱的） this season？

F．Wash your hands regularly．

G．It’s winter and you have probably noticed germs are everywhere．

政府性基金属于政府非税收入，全额纳入财政预算，实行“收支两条线”管理。

下面的例子采用的是______。 ＜ xml version="1.0"＞ ＜FlightInfo> ＜Intro＞ The following flights have available seats: ＜SelectStmt＞SELECT Airline,FltNumber,Depart,Arrive FROM Flights＜/SelectStmt＞＜Conclude＞We hope one of these meets your needs＜/Conclude＞＜/FlightInfo＞

A．模型驱动

B．表格驱动

C．模板驱动

D．对象驱动

空白试验是在相同的试验条件下，用自来水代替样品所做的实验。