单项选择题

A．One of Etna’’s recent eruptions made many people move away.
B．Etna’’s frequent eruptions have ruined most of the local farmland.
C．Etna’’s eruptions are frequent but usually mild.
D．There are signs that Etna will erupt again in the near future.
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单项选择题
Dr. Goldspink disagrees with the proposal that oestrogen could protect heart because _________.
A．female sex hormone can increase blood flow
B．female sex hormone can be beneficial to blood vessels
C．female heart function hardly drops when oestrogen levels fall greatly
D．female heart function improves though not obviously
单项选择题
A．Decaffeinated coffee may help prevent heart disease.B．Coffee does not necessarily cause heart disease.C．Coffee has less caffeine than soda.D．Caffeine can be used as headache remedy.
A．Decaffeinated coffee may help prevent heart disease.
B．Coffee does not necessarily cause heart disease.
C．Coffee has less caffeine than soda.
D．Caffeine can be used as headache remedy.
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