Cloning plants is straightforward cloning animals is very complicated
题型：不详难度：来源：
Cloning plants is straightforward cloning animals is very complicated .| A．so that | B．although | C．while | D．as if |
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答案
| C |
解析
| 词义辨析题。A. so that 为的是 B. although 尽管 C. while 然而 D. as if 似乎 句意：克隆植物直接然而克隆动物非常复杂。 根据语境选C |
举一反三
| It would be unfair to clone any extinct animals they were to live in a zoo. |
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