单项选择题


Questions 17 to 20 are based on the following interview with Professor Schneider about climate change.
Which phenomena did they observe particularly

A．Flowering and migration.
B．Volcanic eruption.
C．Greenhouse gas emissions.
D．Human activities.
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单项选择题
In 1993, the rate of mugging reached the highest since 1981
A．because Britain was suffering from a recession.
B．because there was a growing under class.
C．because of lack of attention from police.
D．because of problems caused by social deprivation.
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