单项选择题

The flower bud of a water lily opens at sunset since its opening is triggered by the decreased light.

A．alleviated
B．endured
C．set off
D．covered op
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单项选择题
Financial consultants acknowledge that the value of common stock is inherently changeable.
A．relatively
B．intrinsically
C．sporadically
D．incrementally
单项选择题
She said it did not help for foreign leaders to badger the United States into action.
A．bother
B．urge
C．rush
D．hinder
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