【导读】
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1. [单选题]苏铁(Cycas revoluta)和银杏的生活史都有游动精子出现，说明它们是裸子植物的原始类型。( )
A. 正确 B. 错误
2. [单选题]The children all turned_________the famous actress as she entered the classroom.
A. looked at B. to look at C. to looking at D. look at
