问题
单项选择题
The passing of a low pressure system can be determined by periodically checking the（）.
A.Thermometer
B.Hygrometer
C.Barometer
D.Anemometer
答案
参考答案：C
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The passing of a low pressure system can be determined by periodically checking the（）.
A.Thermometer
B.Hygrometer
C.Barometer
D.Anemometer
参考答案：C