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【单选题】
Elephants can be used to do some heavy jobs because______.
A.
they can eat a lot
B.
they are very heavy, too
C.
they are very strong
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】— Help yourself to some more food. — ______ , I am already full.
A.
OK
B.
Thank you
C.
No