She often says her greatest happiness consists in helping the disadvantaged children.
A．relies on
B．lies in
C．is composed of
D．is proportionate to

A.
A．relies
B.lies
C.is
D.is

【参考答案】

B
划线词组consistin“存在于，以……为主要内容”。relyon“依赖”，liein“在于”，iscom......

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