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【简答题】
绝大多数触电死亡事故都是由()造成的,它是最危险的一种电气伤害。
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【判断题】个人述职报告侧重写干部个人履职期间的表现,要用写实性语言突出自己的德能勤绩廉,一般不与本单位的工作业绩、问题相掺杂。
A.
正确
B.
错误
【多选题】设A,B为两个事件,以下哪些表述是不正确的( )。
A.
若A,B相互包含,则P(A∪B)=P(A)+P(B)
B.
若A,B互不相容,则P(A∪B)=P(A)+P(B)
C.
若A,B相互独立,则P(AB)=P(A)·P(B)
D.
若A,B互不相容,则P(AB)=P(A)P(B)
E.
若A,B相互独立,则P(B|A)=P(B)
【判断题】捕蝇草受到刺激后,电流达到一定的阈值会发生关闭或打开,这是一种短期记忆。
A.
正确
B.
错误
【简答题】Football, to me, is more than just a . I have probably learned more than valuable lessons from it than from school. When I joined the team freshman year, I didn’t realize what I was getting into. ...
【简答题】Choose the best answer(根据短文内容,选择最恰当的答案): ( 12分) He was just an ordinary postman. Day after day, he shuttled(穿梭) back and forth across the village. For him, life was without waves. One day, he was deli...
【单选题】Success in soccer is more than just winning.
A.
Y
B.
N
C.
NG
【简答题】There is famous story about British poet Samuel Taylor Coleridge.He was writing a poem when he was interrupted by a knock at the door. This was an age before telephones.Someone was delivering a messag...
【简答题】已知函数f(x)=xlnmx(m>0),g(x)=﹣x 2 +2ax﹣3,且f(x)在x=e处的切线方程为2x﹣y﹣e=0, ①求m的值. ②若y=af(x),y=g(x)在区间[1,3]上的单调性相同,求实数a的取值范围. ③求证:对任意的x∈(0,+∞),都有 .
【多选题】设A,B为两个事件,以下哪些表述是不正确的( )。
A.
若A,B相互包含,则P(A∪B)=P(A)+P(B)
B.
若A,B互不相容,则P(A∪B)=P(A)+P(B)
C.
若A,B相互独立,则P(AB)=P(A)·P(B)
D.
若A,B互不相容,则P(AB)=P(A)P(B)
E.
若A,B相互独立,则P(B
F.
A)=P(B)
【单选题】In fact, it has just a history of ______.
A.
less than two hundred years
B.
more than a hundred years
C.
less than a century
D.
nearly a century
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