单项选择题

（）是气血运行的通道。

A.经脉
B.络脉
C.血脉
D.经络

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She was（） be unable to speak.

A.such angry as to
B.so angry as to
C.as angry as to
D.angry so as to
单项选择题
The two girls competed with each other（）the highest mark.

A.for
B.with
C.to
D.against
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