单选题：Thestudyactuallyprovedforthefirsttimethebenefitofstemcellthe

题目内容：

Thestudyactuallyprovedforthefirsttimethebenefitofstemcelltherapy. A．Right
B．Wrong
C．Notmentioned

参考答案：

答案解析：

Patientsintheearlystagesofthediseaserecoveredmorequicklyinth

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Thelittleboywassofascinatedbythemightyriverthathewouldspendhourssittingonitsban

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