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【单选题】
Python 中表示数值x位于区间【10,50】的表示是()A.
x > 10 and x
B.
10 <= x <= 50
C.
x >= 10 or x <= 50
D.
x = [10,50]
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【简答题】当逻辑函数的变量个数和数据选择器的地址输入变量个数（ ）时，可直接用数据选择器来实现逻辑函数。A. 相同
【简答题】20 世纪 20 年代,英国生物统计学家及数学家_____ 提出了方差分析。
【单选题】For the middle part of an essay, which of the following is not true?
A.
The middle gives a clear and logical presentation of the facts and ideas the author intends to put forth.
B.
The middle often contains several paragraphs arranged in some kind of order.
C.
Details are usually not the component of the middle part.
D.
For a narrative essay, paragraphs in the middle can be arranged chronogically.
【判断题】In the classic semantic triangle the symbol is directly related to the referent.
A.
正确
B.
错误
【单选题】力与运动的关系,下面说法最准确的是?
A.
物体运动状态的改变（ dv/dt=a ）与作用于其上的力成正比，并发生于该力的作用线上，即 F=ma
B.
运动与力没有关系 。
C.
有力就有运动，有运动就有力 。
D.
力与运动成正比关系。
【判断题】The time-optimal control problem can show the two limitations in the classic variation method.
A.
正确
B.
错误
【单选题】In the classic prisoners' dilemma with two accomplices in crime, the dominant strategy for each individual is to:
A.
not confess.
B.
confess.
C.
confess only if the other confesses.
D.
This game does not have a dominant strategy.
【单选题】For the middle part of an essay, which of the following is NOT true?
A.
The middle gives a clear and logical presentation of the facts and ideas the author intends to put forth.
B.
The middle often consists of several paragraphs arranged in some kind of order.
C.
Examples are usually not the components of the middle part.
D.
For a narrative paper, paragraphs in the middle part can be arranged chrnologically.
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