单项选择题

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

A．did I know
B．I know
C．do I know
D．I knew
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单项选择题
There was an earthquake happened, ______ 100 people and with more than 300 __
A．killed; injured
B．killing; injureddw
C．killed; injuring
D．killing; injuring
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