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问题 多项选择题

按材料采购合同的约定，供货方交付产品时，作为双方验收依据的资料包括( )。

A．产品说明书

B．双方签订的采购合同

C．合同内约定的质量标准

D．图纸、样品

E．双方当事人共同封存的样品

答案

参考答案：B,C,D,E

单项选择题

下列指标中，（）不属于水环境质量评价指标的指标范围。

A．物理指标

B．化学指标

C．生物指标

D．质量指标
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完形填空

The Internet is an amazing information resource. Students, teachers, and researchers use it 31        an investigative tool. Journalists use it to find information for stories. Doctors use it to learn more about unfamiliar diseases and the    32        (late) medical development. Ordinary people use it for shopping, banking, bill-paying, and 33       (communication) with family and friends. People all over the world use it to connect with individuals from 34          countries and cultures.

35        , while there are many positive developments 36        (associate) with the Internet, there are also certain fears and concerns. 37         concern relates to a lack of control over 38         appears on the Internet. With television and radio there are editors to check the accuracy or appropriateness of the content of programs, and with television there are restrictions 39        what kinds of programs can 40          (broadcast) and at what times of the day. With the Internet, parents cannot check a published guide to determine what is suitable for their children to see.
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