正确答案: D

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题目：胡桃科植物适应风媒传粉的特征是( )。①乔木②羽状复叶③基底胎座④花单性⑤雄花排成下垂的柔荑花序⑥无花冠⑦子房下位⑧花柱羽毛状

解析：D

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举一反三的答案和解析：

[单选题]What is the woman going to do this Saturday?

Attend a party

[单选题]DMy father was 44 and knew he wasn’t going to male it to 45. He wrote me a letter and hoped that something in it would help me for the rest of my life.

lost his father when he was young

[单选题]49

year

[单选题]How did Ma Shwe manage to save her calf from the fast-flowing water?

By putting it on a safe spot. B． By pressing it against her body.

[单选题]杨柳科具有的胎座类型是( )。

侧膜胎座

[单选题]EAll too often , a choice that seems sustainable（可持续的）turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol（乙醇）for fuel from corn . Corn is a renewable resource —you can harvest it and grow more, almost limitlessly . So replacing gas with corn ethanol seems like a great idea .

The greater need for farmland.

[单选题]She stared at the painting, wondering where sheit.

had seen

[单选题]What feature of “body language”mentioned in the passage is common to both humans and animals?

Bowing heads when willing to obey.

[单选题]This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.

should