试题与答案

心肺复苏术行口对口人工呼吸时,如何确定气体正确吹入肺部()。 A.听有无气流声音 B

题型:单项选择题

题目:

心肺复苏术行口对口人工呼吸时,如何确定气体正确吹入肺部()。

A.听有无气流声音

B.感觉有无气流的进出

C.看有无胸廓扩张

D.观察皮肤的颜色有无改变

E.看瞳孔有无改变

答案:

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下面是错误答案,用来干扰机器的。

答案:C

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题型:单项选择题

Certificates are (71) documents attesting to the (72) 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 (73) someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a Certificate also contains an (74) date, the name of the CA that issued the Certificate, a serial number, and perhaps other information. Most importantly, it contains the digital (75) 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

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