单项选择题

Countless sheep can be cloned from one fetal cell.

A．Right
B．Wrong
C．Doesn't say
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单项选择题
Dolly will live longer than an ordinary lamb.
A．Right
B．Wrong
C．Doesn't say
单项选择题
Further study should be made about the age of clones.
A．Right
B．Wrong
C．Doesn't say
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