单项选择题

()he referred to in his speech, the pollution in Beijing is indeed not serious.

A．What
B．As
C．Which
D．Since

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单项选择题
From his () eyes, we can see that he is ().

A．puzzling; puzzled
B．puzzling; puzzling
C．puzzled; puzzling
D．puzzled; puzzled
单项选择题
Britain has recently had a high level of unemployment and the same is true () many other countries.

A．at
B．from
C．of
D．to
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