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【单选题】
下列对判定覆盖定义正确的是
A.
要求对每个分支取真和假的情况至少执行一次
B.
要求对每个可执行语句至少执行一次
C.
要求对每个分支中每个条件取假的情况至少执行一次
D.
要求对每个分支中的所有条件组合情况至少执行一次
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参考答案:
举一反三
【单选题】Read the following definition of a logical fallacy. Which of the following provides a typical example of Confusion of “Necessary” with “Sufficient” Condition? Confusion of “Necessary” with “Sufficient...
A.
You said that I would have to run the mile in less than six minutes to be on the track team, and I did. So why did I get cut from the team?
B.
Dina has to be rich or at least to be an heiress. She after all belongs to the Alpha Phi Lambda sorority which is the richest sorority on campus.
C.
It’s supposed to be in the low twenties tonight, so surely we’re not going to the football game, are we?
D.
To see viruses, one must have a microscope. This follows if William Carroll said he saw viruses, he must have used a microscope.
【单选题】若0<a<1,则不等式 (x-a)(x- 1 a )>0 的解集是(  )
A.
(a, 1 a )
B.
( 1 a ,a)
C.
(-∞,a)∪( 1 a ,+∞)
D.
(-∞, 1 a )∪(a,+∞)
【简答题】英译中 Both language and culture are learned by children without special organized programs of instruction, but motivation to learn is very high since language is the most effective means for a child to ...
【单选题】已知全集U=R,A={x| <0},B={x| ≤1},则(C u A)∩B= (   )
A.
(1,+∞)                 
B.
[1,+∞)
C.
(-∞,0)∪(1,+∞)    
D.
(-∞,0)∪[1,+∞)
【单选题】若集合A={x|x 2 -1<0,x∈R},集合B满足A∩B=A∪B,则C R B为(  )
A.
(-1,1)
B.
(-∞,-1]∪[1,+∞)
C.
(1,+∞)
D.
(-∞,-1)∪(1,+∞)
【单选题】A=[1,+∞),B=(0,+∞),则A∪B=( )
A.
(0,+∞)
B.
[1,+∞)
C.
(0,1]
D.
(-∞, +∞)
【单选题】已知 ,若f(x 0 )>1,则x 0 的取值范围是 [     ]
A.
(0,1)
B.
(﹣∞,0)∪(0,+∞)
C.
(﹣∞,0)∪(1,+∞)
D.
(1,+∞)
【单选题】定义一种新运算“⊕”为:a⊕b=a 2 +|a-b|,则不等式x⊕1>1的解集为(  )
A.
(-∞,0)∪(2,+∞)
B.
(-∞,0]∪(1,+∞)
C.
(-∞,-1]∪(1,+∞)
D.
(-∞,0)∪(1,+∞)
【单选题】已知函数 若f(x 0 )>1,则x 0 的取值范 [     ]
A.
(0,1)
B.
(1,+∞)
C.
(-∞,-1)∪(0,+∞)
D.
(-∞,0)∪(1,+∞)
【单选题】利用以下那种表达系统生产蛋白质药物时,需选择低浓度体系()?
A.
大肠杆菌
B.
酵母
C.
动物细胞
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