There is no doubt ____ the world climate _____ in recent years because of humans activities.
| A．that; changed | B．whether; has changed |
| C．that; has been changing | D．what; is changing |
更新时间：2016-11-26 06:23:32
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【推荐2】—Where is Mother?
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【推荐1】It ________ long before China ________ on the moon.
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【推荐2】When he was a student, he would get up early and work late into night, believing “______________”
| A．Never too late to learn. |
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