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问题 单项选择题

下列含有核黄素的辅酶是

A．FMN
B．NAD＋
C．辅酶Q
D．NADP＋
E．辅酶A

答案

参考答案：A

解析：[解题思路] FMN含有核黄素(维生素 B2)，其余均不含。
[命题规律] 考察“维生素与辅酶的关系”。重点掌握。

单项选择题

Certificates are （） documents attesting to the （） 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 （） someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a Certificate also contains an （） date, the name of the CA that issued the Certificate, a serial number, and perhaps other information. Most importantly, it contains the digital （） 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.

Most importantly, it contains the digital （） of the certificate issuer.

A．signature

B．mark

C．stamp

D．hypertext
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单项选择题

影响速动比率可信性的最主要因素是 ( )。

A．存货的变现能力
B．短期证券的变现能力
C．产品的变现能力
D．应收账款的变现能力
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