赞题库-背景图

单项选择题

Many countries face some serious problems of land use, ______result from population growth and the demands of modem technological living.

A．which most
B．most of which
C．most which
D．of most which

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热门试题

单项选择题Forty percent ______stopped smoking in that company.

A．has
B．is
C．have
D．are

单项选择题George did ______than anyone else.

A．much work
B．more work
C．work much
D．work more