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问题 单项选择题

设备制造工艺方案应经过承包商总工程师和技术负责人审核批准后送交( )审批。

A．业主项目负责人

B．业主的项目采购经理

C．承包商项目负责人

D．设备监理工程师

答案

参考答案：D

单项选择题

胆囊结石嵌顿于胆囊颈部时，超声检查除发现结石外尚可见：()

A．胆囊肿大不明显，但局部有压痛

B．胆囊肿大明显，且有压痛

C．胆囊中度肿大

D．胆囊轻度肿大，局部有压痛

E．胆囊大小正常，但囊壁水肿成“双边”状
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单项选择题

Certificates are (16) documents attesting to the (17) of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to (18) someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an (19) date, the name of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital (20) of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.

A．text

B．data

C．digital

D．structured
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