The most important information to be obtained from a barometer is the（）.<br>A:difference between the reading of the two pointers，which shows wind direction<br>B:last two figures of the reading of the pointer，such as 87，76，or 92<br>C:present reading of the pressure，combined with the changes in pressure observed in the recent past<br>D:weather indications printed on the dial (such as cold，wet，etc.) under the pointer

The most important information to be obtained from a barometer is the（）.
A:difference between the reading of the two pointers，which shows wind direction
B:last two figures of the reading of the pointer，such as 87，76，or 92
C:present reading of the pressure，combined with the changes in pressure observed in the recent past
D:weather indications printed on the dial (such as cold，wet，etc.) under the pointer

出自：海船船员证

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