单项选择题

A．The progress in developing alternative energy.
B．The abundant deposit.
C．The development of technology.
D．All of the abov
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单项选择题
A．was nominated for Defense SecretaryB．was member of the Senate Anna Services CommitteeC．was concerned by the growing tension on the Korean PeninsulaD．is Deputy-Secretary of Defense
A．was nominated for Defense Secretary
B．was member of the Senate Anna Services Committee
C．was concerned by the growing tension on the Korean Peninsula
D．is Deputy-Secretary of Defense
单项选择题
A．The heavy snowfall.B．The melting snow and heavy rain.C．The tropical storm.D．The dike has been destroye
A．The heavy snowfall.
B．The melting snow and heavy rain.
C．The tropical storm.
D．The dike has been destroye
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