题目内容
(请给出正确答案)
[单选题]
It is a ____ truth that man is the only animal that has the power to speak and reason.
A、worthy
B、virtual
C、universal
D、indefinite
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A、worthy
B、virtual
C、universal
D、indefinite
A、let knowing the truth
B、speak out the truth
C、come out with the truth
D、talk over the truth
B.To begin with
C.To tell you the truth
D.To sum up
A.hasn’t he
B.isn’t he
C.isn’t it
D.hasn’t it
函数X1(t),X2(t),…,Xn(t),在区间a≤x≤b上线性相关,则在[a,b]上它们的伏朗斯基行列式W(t)≠0。()
A.错误
B.正确
A.can’t
B.mustn’t
C.don’t need
D.don’t have to
A.needn’t
B.shouldn’t
C.mustn’t
D.can’t
A.3660元/t
B.3700元/t
C.3650元/t
D.3680元/t
A.(T*F)
B.T*F
C.P↑
D.P↑(T*F)