Street sellers, particularly in developing countries,【C1】______large amounts

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问题 Street sellers, particularly in developing countries,【C1】______large amounts of food to people【C2】______low incomes. This sector also employs some 6-25% of the work force, mainly women, in developing countries, and provides markets for agricultural and other【C3】______. In many countries,【C4】______, the authorities are not willing to【C5】______it as a formal sector of the food supply system. They may【C6】______it in food control programs or even try to put an end to it.
There are two possible【C7】______: pathogenic micro-organisms and【C8】______chemicals. As【C9】______as micro-organisms are concerned, there is apparently no convincing evidence that street foods are more【C10】______in the【C11】______of infection than foods obtained in, e.g. hotels. Studies in Egypt and elsewhere have found street foods to compare not【C12】______with hotel foods in respect of contamination with micro-organisms — some street foods were found to be contaminated with pathogens,【C13】______so were foods from four-and five-star hotels in the same area.
Hazardous chemicals have been found in street foods, and food exposed for sale on roadsides may become contaminated by lead from vehicle【C14】______.
Health dangers may【C15】______with: purchase of raw【C16】______of poor quality; improper storage,【C17】______, and cooking; limited piped drinking-water; lack of refrigeration; unsatisfactory waste-disposal facilities; and personal cleanliness. The authorities should take【C18】______account the potentials of different categories of food for transmitting disease. Dry foodstuff, dried grains, and【C19】______foods are less likely to transmit disease than gravies, cooked rice, and low-acid milk, egg, and meat products. Similarly foods which are【C20】______cooked and eaten at once are safer than precooked food kept at high temperatures for several hours. [br] 【C1】

选项 A、provide
B、offer
C、supply
D、afford

答案 C

解析习惯用法及词义辨析题provide，offer，supply都表示提供的意思。但搭配的介词及含义各有不同。provide sb．with sth．，provide sth．for sb．“向某人提供某事物，供给，供应”；offer sth．(to sb．)(for sth．)“(向某人)提出某事物供考虑、接受或拒绝”；supply sth．(to sb．)／supply sb．(with sth．)“供给或供应某人所需或可用的物品”；affordsth．(to sb．)“带来，带给(某项功能或享受)”，如：The tree afforded(us)welcomeshade．这棵树下好乘凉。此处搭配介词to，同时表示事物的供给，故选C。

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Street sellers, particularly in developing countries,【C1】______large amounts

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