如图进化树表示几种生物的进化过程示意图，根据图回答下列问题：_爱下问搜题

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问题解答题

如图进化树表示几种生物的进化过程示意图，根据图回答下列问题：

（1）A、B、C、D四种生物的共同祖先是______．

（2）与B生物亲缘关系最近的生物是______．

答案

（1）进化树表示几种生物的进化过程示意图，从图中可以得出F→E→A→B；F→E→D→C．因此A、B、C、D四种生物的共同祖先是F．

（2）从图中得出F→E→A→B，因此与B生物亲缘关系最近的生物是A．

故答案为：

（1）F；

（2）A．

填空题

在缺省情况下，报表中的记录是按照______排列显示的。

填空题

根据句意及首字母或汉语提示完成单词。

1. Don't tell a lie. Please tell us the t , so we can make a right decision.

2. —What's in your s ?

—Some books and a pencil-box.

3. Most restaurants are d to be comfortable.

4. Loud music makes most people t , but it makes Tina relaxed.

5. Restaurant o have to know how to make food. They also have to know how to make money.

6. —What color do you prefer, pink or p ?

—I prefer pink.

7. Different people have very different (思想).

8. The quality of a (产品) is the most important.

9. We must protect (濒危的) animals because they are our friends.

10. The girl received a (神秘的) phone call last night.