题目内容

According to Dr. Liu's paper, the dwindling of biodiversity is due to

A. the reduction in average home size.
B. the improvement of living conditions.
C. the increasing number of residences.
D. the decline of population growth rate.

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A. has cleared the legislature.
B. still has a faint light of hope.
C. is actually not necessary.
D. is none of government's business.

A. impartial.
B. indifferent.
C. biased.
D. sympathetic.

A. Visual Basic
B. 程序设计
C. A程序设计
D. Visual Basic程序设计

A. they can relax our minds.
B. they provide dwellings for us.
C. they keep the ecosystem balanced.
D. they act as animal reserves.