单项选择题

A "synoptic" weather map is a chart that ______.

A．summarizes a great deal of general weather information
B．appears daily and can be interpreted accurately
C．presents data on atmospheric conditions over a wide area
D．shows ever-changing fronts

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热门试题

单项选择题The thirty-day forecast is determined by examining ______.

A．daily weather maps
B．upper air levels
C．satellite reports
D．changing fronts

单项选择题All the following characteristics of weather maps are mentioned in this passage EXCEPT ______.

A．barometric pressure
B．fronts
C．thermal changes
D．wind speed