单项选择题

So little ______ about physics that the lecture was completely beyond me.

A．I knew
B．did I know
C．I had known
D．had I known
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单项选择题
He was ______admission of the restaurant for not wearing a tie.
A．denied
B．granted
C．acquired
D．appealed
单项选择题
Manufacturing companies spend millions of pounds trying to convince customers that their products are ______ to those of others.
A．better
B．best
C．super
D．superior
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