题目内容

在现行的GAR框架中,风险是哪些因素的组合

A. hazard
B. exposure
C. vulnerablility
D. damage

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8段数码管要显示0时,“a,b,c,d,e,f,g,dp“8段中,那几段亮?

A. a,b,c,d,e,f
B. a,c,d,e,f,dp
C. e,f,g,dp
D. b,c,d,e,f

共阴极数码管,若要某段亮,需要送高电平还是低电平?

A. 高电平
B. 低电平
C. 高低都可以

数码管根据接线法,有哪两种?

A. 共阳极接法
B. 共阴极接法
C. 平行接法
D. 垂直接法

1. So badly _____________ in the accident that he was detained in the hospital for treatment.

A. did he injure
B. he did injure
C. was he injured
D. he was injured

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