单项选择题

The Department of Resources notified the town council that the water supply was (contaminated).

A．cut
B．dangerous
C．diverted
D．polluted
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单项选择题
The development of the transistor and integrated circuits revolutionized the electronics industry by allowing components to be packaged more (densely).
A．compactly
B．inexpensively
C．quickly
D．carefully
单项选择题
The stories of Sarah Orne Jewett are considered by many to be more (authentically) regional than those of Bret Harte.
A．elegantly
B．genuinely
C．intentionally
D．thoroughly
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