本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理
[单选题]
As the temperature of tc u+s*mfnp 88rt87 uqnhe air i /gz82m4ripwl*j l uq+;d4 tzvns6)kg ncreases, what happens to the velocity of sound? (Assume that all other facjm l*nt8g4kp;dq r/6zi2z+ s) 4ulg vwtors remain constant.)
A. It increases.
B. It decreases.
C. It does not change.
D. It increases when atmospheric pressure is high and decreases when the pressure is low.
参考答案: A
本题详细解析:
暂无
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