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举一反三
【多选题】在“ 0 ” 、“ 1 ” 等概率出现情况下,包含直流成分的码是 ( )。
A.
AMI 码
B.
双极性归零码
C.
单极性归零码
D.
HDB 3 码
E.
双极性不归零码
F.
单极性不归零码
【单选题】SIL是safety Integrity Lever的简称，中文的意思就是安全度等级．它是美国仪表学会（ISA）在S8.01标准中对过程工业中安全仪表系统所作的分类等级．SIL分为1、2、3三级。其中2级每年故降危险的平均概率为（）之间
A.
0.1～1
B.
0.01～0.1
C.
0.001～0.01
D.
0.0001～0.001
【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
The young man was good at shooting.
B.
Mr.Turner liked the young man very much.
C.
Mr.Turner disliked the young man.
【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
Worked as a guard.
B.
Worked as a driver.
C.
Worked as a teacher.
相关题目：
【多选题】在“ 0 ” 、“ 1 ” 等概率出现情况下,包含直流成分的码是 ( )。
A.
AMI 码
B.
双极性归零码
C.
单极性归零码
D.
HDB 3 码
E.
双极性不归零码
F.
单极性不归零码
【单选题】SIL是safety Integrity Lever的简称，中文的意思就是安全度等级．它是美国仪表学会（ISA）在S8.01标准中对过程工业中安全仪表系统所作的分类等级．SIL分为1、2、3三级。其中2级每年故降危险的平均概率为（）之间
A.
0.1～1
B.
0.01～0.1
C.
0.001～0.01
D.
0.0001～0.001
【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
The young man was good at shooting.
B.
Mr.Turner liked the young man very much.
C.
Mr.Turner disliked the young man.
【单选题】Mr.Tuner had been a captain for many years. He was good at shooting (射击). In the army he taught new soldiers to shoot. Then he left the army and began to work in a bank as a night watchman. He worked ...
A.
Worked as a guard.
B.
Worked as a driver.
C.
Worked as a teacher.
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