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A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tend not to bother to recover a perishable treat if stored long enough to have rotted.
A.tend not to bother to recover a perishable treat if
B.they tend not to bother recovering a perishable treat
C.tending not to bother recovering a perishable treat if
D.tends not to bother recovering a perishable treat
我只是想知道D选项没有了if之后难道没有语义上的错误吗? |
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