In an experiment conducted last autumn, scientists made exact copies of a human embryo for the first time. The ethical dilemmas

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问题 In an experiment conducted last autumn, scientists made exact copies of a human embryo for the first time.
The ethical dilemmas of cloning has prevented it from further developing.

选项 A、Right
B、Wrong
C、Not mentioned

答案A

解析 见最后一段,克隆在道德方面所处的困境尚未充分开展讨论,因为公众认为时机远未成熟。许多人呼吁要在克隆技术滥用前及时加以控制。
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