单项选择题

Until recently, body heat has caused problems because it （）.

A．was difficult to collect
B．came in a variety of forms
C．was difficult to get rid of
D．tended to be absorbed by physical objects

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热门试题

单项选择题

The phrase even in winter (in line 8) most nearly means （）.

A．if the winter is especially warm
B．during all of the year except the winter
C．in the winter as well as in other seasons
D．during the evenings in the winter

单项选择题

What is the main subject of the passage（）

A．Bussiness management policies.
B．Driving to work.
C．Extending the work place by means of computers.
D．Computers for child—care purposes.