Street sellers particularly in
developing countries, supply large amounts of food{{U}} (51)
{{/U}}people on 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 produce. In many countries{{U}} (52) {{/U}}, the
authorities are not willing to recognize it{{U}} (53) {{/U}}a formal
sector of the food supply system, they may ignore it in food control programs or
even try to put an end to{{U}} (54) {{/U}}.
There are
tow possible contaminants: pathogenic micro-organisms;{{U}} (55)
{{/U}}hazardous chemicals: As{{U}} (56) {{/U}}as micro-organisms are
concerned, there is apparently no convincing evidence that street foods are more
involved in the transmission of infection{{U}} (57)
A. at
B. with
C. from
D. to
更多"阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内"的相关试题:
[单项选择] 阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
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Inflation
Business and
government leaders also consider the inflation rate to be an important general
indicator. Inflation is a period of increased spending that causes rapid rises
in prices. {{U}} (51) {{/U}} your money buys fewer goods so that you get
{{U}} (52) {{/U}} for the same amount of money as before, inflation is
the problem. There is a general rise {{U}} (53) {{/U}} the price of goods
and services. Your money buys less. Sometimes people describe inflation as a
time when "a dollar is not worth a dollar anymore".
Inflation is
a problem for all consumers. People who live on a fixed income are hurt
the {{U}} (54) {{/U}}. Retired people, for instance, cannot count on an
increase in income as prices rise. Elderly people who do not w
A. race
B. pace
C. speed
D. step
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