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问题 单项选择题

KDOQI指南对含铝的磷结合剂的应用限制中指出，当血磷大于7.0mg/dL的患者，只能短期使用一个疗程含铝的磷结合剂几周（）

A.2~4周

B.4~8周

C.半年

D.无限制

答案

参考答案：A

选择题

下列符合量变和质变辩证关系原理的有（　　）

①国家兴亡，匹夫有责　②蝼蚁之穴溃千里之堤　③天行有常，不为尧存，不为桀亡　④锲而不舍，金石可镂　⑤城门失火，殃及池鱼　⑥九层之台，起于垒土

A．①②③

B．③④⑤

C．①③⑤

D．②④⑥
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单项选择题

Originally introduced by Netscape Communications, (21) are a general mechanism which HTTP Server side applications, such as CGI (22) , can use to both store and retrieve information on the HTTP (23) side of the connection. Basically, Cookies can be used to compensate for the (24) nature of HTTR The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (25) .

A．Client

B．Editor

C．Creator

D．Server
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