单项选择题

Every community requires a wholesome, dependable supply of water, and every community generates liquid and solid wastes.

A．considerable
B．healthful
C．immediate
D．secure
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单项选择题
An intelligent TV viewer may occasionally become enraged by the ______ argumentation in commercials.
A．imperative
B．fallacious
C．persuasive
D．fabulous
单项选择题
Cough syrups and cold remedies that are manufactured with alcohol will last much longer than those prepared with water.
A．float
B．finish
C．remain effective
D．be prescribed
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