单项选择题

The main purpose of the passage is to ______.

A．discuss the advantages and disadvantages of skyscrapers
B．compare skyscrapers with other modern structures
C．describe skyscrapers and their effect on the environment
D．illustrate various architectural designs of skyscrapers

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热门试题

单项选择题

The author implies that increased accuracy in weather forecasting will lead to ______.

A．greater protection of human life
B．more funds allocated to meteorological research
C．a higher number of professional forecasters
D．less - specialized forms of synoptic meteorology

单项选择题

In the last sentence of the passage, the phrase these tools refers to ______.

A．mathematics and physics
B．weather forecasts
C．meteorological problems
D．economic advantage