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问题 单项选择题 A1/A2型题

Addis计数所需尿标本为 （）

A.晨尿

B.随机尿

C.3h尿

D.12h尿

E.24h尿

答案

参考答案：D

解析：Addis计数收集12h夜尿，由于标本为浓缩标本，有利于有形成分计数及定量。

单项选择题

下列关于P波的描述不正确的是（）。

A.Ⅱ导联P波直立

B.Ⅲ导联P波双向

C.aVR导联P波直立

D.aVL导联P波不明显

E.Vs导联P波直立
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单项选择题

(66) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string. (67) is a protocol that most USENET machines how use it to allow news articles to propagate from one machine to another over a reliable connection. (68) is an approach preferred by cable TV providers. In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable. (69) is a device used to connect two separate network that use different communication protocol. (70) js a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．MD

B．RSA

C．DES

D．MIB
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