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问题 单项选择题

( )水利工程建设质量与安全事故是指已经或者可能导致死亡(含失踪)30人(含本数)以上，或重伤(中毒)100人以上，或需要紧急转移安置10万人以上，或直接经济损失1亿元以上的事故。

A．Ⅰ级

B．Ⅱ级

C．Ⅲ级

D．Ⅳ级

答案

参考答案：A

改错题

短文改错（共10小题；每小题1分，满分10分）

Throughout history man has changed their physical environment in order to improve his way of life. With the tools of technology that he has changed many physical features of the earth. Thus, man’s changes to the physical environment has not always had beneficial results. Today, pollution of the air and water is a increasing danger to the health of the planet. Like we know, massive destruction of environment has brought in negative effects and even formed a great threat to man’s existence. Therefore, effective measures should be taken and laws pass to conserve environment. Otherwise, man is certain to suffer the serious consequences causing by this lack of care for his living surroundings.
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单项选择题

在国际收支的衡量指标中，( )是国际收支中最主要的部分。

A．贸易收支

B．国外投资

C．劳务输出

D．国外借款
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