问题
选择题
There are lots of islands the coast of Canada, and Shanghai is a famous harbor the east coast.
A．off, on
B．on, on
C．on, off
D．off, off
答案
答案：C
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There are lots of islands the coast of Canada, and Shanghai is a famous harbor the east coast.
A．off, on
B．on, on
C．on, off
D．off, off
答案：C