单项选择题

Due in large part to the complexity of its structure--over two hundred bones ______ together by ligaments--the human skeleton is a marvel of architectural construction.

A．binging
B．bound
C．bounded
D．bind
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单项选择题
Those are very important papers and I'd just as soon ______ here.
A．as you leave them
B．you leave them
C．you will leave them
D．that you will leave them
单项选择题
To give top ______ to health is to prolong your life and enjoy your life.
A．superiority
B．priority
C．inferiority
D．minority
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