题目内容

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，eetc.)under the poin

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The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to _____.

A. secure all openings to the tank
B. discharge an initial charge of CO2 with a hand portable extinguisher
C. direct a fire hose into the tank and energize the fire main
D. spray the tank boundaries with a fire hose to promote cooling

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The most important information to be obtained from a barometer is the （).

The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to _____.

创建分组统计查询时，总计项应该选择（)

查询可作为（)数据的来源

Access提供的数据访问页的三种视图分别是（)视图、（)视图、（)视图。