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问题 单项选择题 A1型题

关于体位转移方法的选择原则，正确的是（）。

A、无论患者残疾程度如何，均应训练其独立转移能力

B、能提供少量帮助时则不要提供大量帮助

C、因会妨碍患者独立性的建立，一般不首先考虑被动转移

D、为了节省人力，无论转移距离远近，均以一个人帮助为好

E、转移频繁时不便使用升降机

答案

参考答案：C

单项选择题

关于酶的叙述，正确的是（）

A.酶对底物都有绝对专一性

B.有些RNA也具有酶活性

C.所有酶均以酶原形式存在

D.酶的催化作用与其构象无关

E.酶只能在中性环境发挥作用
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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．connecting

B．binding

C．composing

D．conducting
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