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【单选题】
设 10 件产品中有 3 件不合格品,从中 不放回地取两次 ,每次一件,则取出 的第二件为不合格品的概率( )
A.
3/10
B.
1/5
C.
1/15
D.
49/100
参考答案：
参考解析：
刷刷题刷刷变学霸
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】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ walness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】第二篇 Health or Profit Although there is no direct evidence that salt is the cause of high blood pressure ar "hypertension", there are studies which indicate that reducing salt intake lowers blood press...
A.
the small reduced salt bread tastes the same as the standard content one
B.
most people can distinguish the content of salt in bread
C.
standard bread is different in taste from 20% reduced salt bread
D.
the less salt content of bread, the poorer taste it has
【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】第二篇 A Fire near Waco Six years later, in an about-face, the Federal Bureau of Investigation(FBI) admits that federal agents fired tear gas canisters capable of causing a fire at the Bran...
A.
neutral
B.
bitter
C.
excited
D.
expectant
【单选题】第二心音是( )
A.
标志心室收缩期的开始
B.
标志心室舒张期的开始
C.
以心尖部最强且清晰
D.
是心室壁、房室壁、腱索和乳头肌振动而产生
E.
是左右房室瓣骤然关闭的振动所致
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】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ walness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】第二篇 Health or Profit Although there is no direct evidence that salt is the cause of high blood pressure ar "hypertension", there are studies which indicate that reducing salt intake lowers blood press...
A.
the small reduced salt bread tastes the same as the standard content one
B.
most people can distinguish the content of salt in bread
C.
standard bread is different in taste from 20% reduced salt bread
D.
the less salt content of bread, the poorer taste it has
【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
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0.0001～0.001
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胚胎第2个月
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出生1年后
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在一个盒子里装有均匀的已编有不同号码的五个白球和七个黑球，则：
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小2倍
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专门还款准备金
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正确
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错误
【单选题】动物界的第二大门是（）
A.
节肢动物门
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软体动物门
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大于
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【单选题】第二心音是( )
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标志心室收缩期的开始
B.
标志心室舒张期的开始
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以心尖部最强且清晰
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