单选题
2797. The temperature gradient from sea level to the altitude at which the temperature is -565℃ (-697℉) is -000198℃ (-0003564℉) per foot and zero above that altitude
A
从海平面到温度为-56.5℃(-69.7℉).....
B
从海平面到温度为-56.5℃(-69.7℉)的高度的温度梯度为每英尺-0.00198℃(-0.003564℉),高于该高度为零。
C
从海平面到温度为-56.5℃(-69.7℉)...
答案解析
正确答案:B
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