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问题 多项选择题

施工招标中采用综合评分法评标，评定报价部分得分高低的评分标准可以采用( )。

A．最高报价衡量法

B．标底衡量法

C．复合标底衡量法

D．无标底衡量法

E．成本价衡量法

答案

参考答案：B,C,D

解析： 综合评分法评标，报价部分的评分又分为用标底衡量、用复合标底衡量和无标底衡量3大类。

单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
(73) functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.

A. MAC address and IP address B. MAC address and port address
C. E-mail address and IP addressD. port number and IP address

A socket is composed of two addresses: (74) .Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.
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单项选择题

以下药物的鉴别反应为：维生素E1（）.

A．供试品在碱性条件下水解后，用乙醚萃取，分取乙醚液，加2，2′-联吡啶溶液和三氯化铁溶液，显血红色 

B．取供试品1滴，加甲醇10ml和5%氢氧化钾的甲醇溶液1ml，振摇，溶液显绿色；置热水浴中即变为深紫色；放置后，显红棕色 

C．显氯化物的鉴别反应 

D．显钠盐的鉴别反应 

E．取供试品溶液，加二氯靛酚钠试液，试液的红色即消失
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