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单项选择题

A．The conversion of volcanic waste to fertilizer.
B．The menace of currently dormant volcanoes around Mount Saint Helens.
C．The eruption of Mount Saint Helens and its effects on the environment.
D．The elimination of volcanic ash by natural means.
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单项选择题A．No one knows how Mary gets to work.B．She doesn’t think the record player works.C．She throws the old record away.D．It’s surprising that Mary could repair the record player.

A．No one knows how Mary gets to work.
B．She doesn’t think the record player works.
C．She throws the old record away.
D．It’s surprising that Mary could repair the record player.

单项选择题A．Most of the children in developing countries do not receive education or health care.B．The chief goal of Child Hope U. S. A is to halt the spread of AIDS and the use of illegal drugs among children.C．Child Hope U. S. A cooperates with international children’s groups, government agencies and other national and local groups.D．No children work in Pakistan after the new laws to control child labor was approved.

A．Most of the children in developing countries do not receive education or health care.
B．The chief goal of Child Hope U. S. A is to halt the spread of AIDS and the use of illegal drugs among children.
C．Child Hope U. S. A cooperates with international children’s groups, government agencies and other national and local groups.
D．No children work in Pakistan after the new laws to control child labor was approved.