问题 单项选择题

简单地说,狭义国际收支是指一国的( )

A.记账贸易
B.对外外汇资金收支
C.易货贸易
D.补偿贸易

答案

参考答案:B

解析: 狭义国际收支是指一个经济体在一定时期内,由于各种对外交往而发生的、必须立即结清的、来自其他国家的外汇收入总额与付给其他国家的外汇支出总额的统计。简单地说,狭义国际收支是指该国的对外外汇资金收支。

问答题
单项选择题

The use of chemicals in almost all areas of life has become a commonplace phenomenon. There is growing evidence, however, that chemicals in the environment, including pesticides, may contribute to some illnesses. While studies are still being conducted, preliminary conclusions point to the verdict that such chemicals are indeed negatively impacting those humans to whom they are exposed.

Children are especially vulnerable to toxic substances. Pound for pound, they eat, drink and breathe more than adults, all of which exposes them more heavily to those chemicals to which most individuals encounter on a daily basis. Furthermore, their bodies are still in developing stages, exacerbating the negative effects of those chemicals, which negatively impact them.

Of 50 types of pesticides commonly used in American schools, a study conducted by the National Coalition Against the Misuse of Pesticides found that many caused negative reactions in laboratory animals. Such negative effects included kidney and liver damage, cancer, and neurological and reproductive problems.

These implications of these findings are far-reaching. Given the variety of harmful effects attributed to those pesticides tested, one must pause and consider whether it is wise to continue their use in the nation’s schools, where children will be constantly exposed to them. Activists have lobbied for the elimination of such use with a degree of success, and recent findings, if supported by further analysis and confirmation, may help further the cause. A long term solution or alternative, however, remains elusive.

In the short run, however, there may be some measures that can be taken to mitigate the harmful effects of dangerous pesticides. The American Medical Association’s Council on Scientific Affairs concluded in a 1997 report that given the "particular uncertainty.., regarding the long-term health effects of low-dose pesticide exposures," it is "prudent" for adults and children to limit their exposure and to "consider the use of the least toxic chemical pesticides or non-chemical alternatives. \

The author cites the American Medical Association’s advice in paragraph 5 in order to()

A. present more factual details to clarify the issue

B. present an alternative theory for consideration

C. present a recommendation from a reputable source

D. present a solution drawn from all the evidence considered