单项选择题

There are just as many protons in the nucleus as electrons______ around it.

A．revolving
B．spinning
C．rotating
D．spiraling
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单项选择题
David likes country life and has decided to______ farming though his father suggests him thinking twice before do it.
A．go in for
B．go back on
C．go through with
D．go along with
单项选择题
The contract was______ in difficult legal language. The manager could hardly read it.
A．formulated
B．illustrated
C．imitated
D．illuminated
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