单项选择题

The sensation of a "lump in one's throat" arises from an increased flow of blood into the tissues of the pharynx and larynx.

A. explanation
B. disease
C. feeling
D. unpleasantness
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单项选择题
In the process，the light energy converts to heat energy．
A．reduces
B．changes
C．leaves
D．drops
单项选择题
We shall take the treasure away to a safe place.()

A. clean
B. pretty
C. distant
D. secure
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