单项选择题

One of California' s greatest problems is providing ______ water to meet the needs of its expanding population.

A．adverse
B．adjacent
C．adequate
D．aesthetic
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单项选择题
The war has raised questions about the utility of the national guard and reserve organizations, which the Department of Defense finds ______ to U.S. defense needs but which the Congress desires to maintain.
A．ample
B．surplus
C．extra
D．redundant
单项选择题
The ______ homogeneous Dakota grasslands are actually a botanical garden (植物园) of more than 400 types of grasses.
A．apparently
B．appropriately
C．arrogantly
D．autonomously
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