Food sometimes gets poisoned with harmfu

题型:阅读理解

问题:

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

Certain microorganisms (微生物) cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release (释放) poisons that make people sick.

Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepaid. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.

Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

When people handle food properly, the risk of food poisoning is very small Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat raid mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.

小题1:Which of the following statements is NOT true?

A.Food when poisoned can make people sick.

B.Food poisoning means death.

C.Food poisoning comes in varieties.

D.Food poisoning can be serious.小题2: We know from the passage that the symptoms of food poisoning       .

A.are always accompanied by a fever

B.are too common to be noted

C.can be noticed within hours

D.can be ignored小题3:Food poisoning can be caused by all the following EXCEPT     .

A.some chemicals

B.low temperatures

C.some tiny living things

D.certain natural materials小题4:It can be inferred from the passage that

A.natural materials are safe in food processing

B.chemicals are needed in food processing

C.food poisoning can be kept under control

D.food poisoning is out of control

考点:科教类阅读
题型:阅读理解

Agilent37907A是一个专门面向()无线网络的信令分析仪。

A.2G

B.3G

C.2G/2.5G/3G

D.25GSG

题型:阅读理解

2013年前三季度,我国成品油购、销、存量走势与2012年前三季度基本一致,成品油采购量、销售量基本接近2012年同期水平。但2013年第四季度国内成品油购、销、存量与上年同期有较大差异,12月尤其显著。主要原因是12月是国内大部分省(区、市)执行成品油“国III”标准的最后一个月,属于新旧成品油标准的衔接阶段。成品油经营企业一方面加大“国III”标准成品油促销力度,为准备下一阶段经营“国IV”标准成品油腾库;另一方面,在油品采购方面,油品经营企业控制采购,确保2014年库存少存或不存“国III”标准成品油。据商务部监测,2013年末全国汽柴油总库存量为1106.3万吨,其中汽油库存量为507.2万吨,较上年末增加1.3%,柴油库存量则下降12.1%。

2013年,汽油和柴油库存量环比呈现双增长的月份个数有()个。

A.3

B.4

C.5

D.6

题型:阅读理解

商业银行的办理业务买卖双方发生争议时,买方保理商和卖方保理商可介入争议的前提条件有()

A.不承担任何责任

B.不分担任何费用

C.不履行保理义务

D.不享受保理利益

题型:阅读理解

地方普通高校毕业参加工作后特招入伍的干部,在校学习时间不计算为住房补贴年限。

题型:阅读理解

我国对义务教育阶段的学生实行免费教育,对一些人群免费接种甲流疫苗,这些都需要国家财政的支持。财政在这一方面的支出属于()

A.经济建设支出

B.科教文卫事业支出

C.社会保障支出

D.行政管理支出

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