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案例分析题甲建设单位在某城市中心区建设商品房项目,由取得安全生产许可证的乙施工单位总承包,由丁监理公司监理。乙经过甲同意将基础工程分包给丙施工单位,丙在夜间挖掘作业中操作失误,挖断居民用水管造成大面积积水,需抢修。后续又发生两起安全事故:(1)乙施工单位的施工人员违反规定使用明火导致失火,造成一名工人受伤;(2)焊接现场作业员王某违章作业造成漏电失火,王某撤离现场。 在该焊接作业现场的下列说法中,不符合《消防法》规定的是()。

A. 氧气瓶应单独存放并做好安全标识
B. 经项目负责人批准,可以携带火种进入焊接场所
C. 焊接作业人员必须持证上岗
D. 焊接作业人员应采取相应的消防安全措施

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59()

A. habit
B. experience
C. harvest
D. intake

若每一条指令都可以分解为取指、分析和执行三步。已知取指时间t取指=5△t,分析时间t分析=2△t,执行时间t执行=5△t。如果按顺序方式从头到尾执行500条指令需()△t。如果按照[执行]k、[分析]k+1、[取指]k+2重叠的流水线方式执行指令,从头到尾执行500条指令需()△t。 如果按顺序方式从头到尾执行500条指令需()△t。

A. 5590
B. 5595
C. 6000
D. 6007

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. to the () of a public key to an individual or other entity.

A. connecting
B. binding
C. composing
D. conducting

下面的程序段中,() 是语句覆盖测试用例,() 是判定覆盖测试用例。 if (a<80) b=0; else if (a<=150) b=5; else if (a<200) b=8; else b=1; 下面的程序段中,()是语句覆盖测试用例。

A. a=(80,150,200,201)
B. a=(80,81,199,200)
C. a=(79,149,200,201)
D. a=(79,150,199,200)

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