题目内容
(请给出正确答案)
[单选题]
His advice was of great ______; it helped me a lot in my study.
A.price
B.value
C.interest
D.liking
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A.price
B.value
C.interest
D.liking
A.occasionally
B.necessarily
C.barely
D.undoubtedly
B.I see. We have 30 minutes left
C.That's no problem
D.I'm afraid so
A.Nu:待定准数
B.Re:流体的流动型态对对流传热的影响
C.Pr:流体物理性质对对流传热的影响
D.Gr:自然对流对对流传热的影响