如图，已知 P 是线段 AB 的黄金分割点，且 PA>PB .若 S1 表示以 PA 为一边的正方形的面积， S2 表示长是 AB 、宽是 PB 的矩形的面积，则 S1 _1 S2 .(填“&g_刷题宝

题干

如图，已知 P 是线段 AB 的黄金分割点，且 PA>PB .若 S1 表示以 PA 为一边的正方形的面积， S2 表示长是 AB 、宽是 PB 的矩形的面积，则 S1 ____ S2 .(填“>”“＝”或“<”)

上一题下一题 0.0难度选择题更新时间:2019-02-02 03:17:34

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同类题1

某阴离子的结构示意图为

，则X的值可能是____

A.9 B.10 C.12 D．____．

同类题2

根据对话内容，从方框中选择恰当的选项补全对话。其中有两项多余

A：Come here, everyone! We are going to Tian'anmen Square．

B：____

A：It's about 440.000m²．

B：____

A：Yes．In the past it was called the Forbidden city．Now people call it Gugong．____

B：Is it large?

A：____

B：Who asked people to build it?

A：Some emperors．

B：____

A：They started to build it in 1406．And they finished building it in 1420．

B：It took fourteen years．It must be amazing．

A．How large is Tian'anmen Square?

B．Yes, it's about 720，000m²．

C．Are we going there?

D．Is the Forbidden City next to Tian'anmen Square?

E．Why did they build it?

F．It's one of the most famous places in the world，

G．When did they build it?

同类题3

直接写出得数.

4×8＝____

8×5＝____

2×8＝____

8×8＝____

同类题4

既不临海，又无邻国的少数民族自治区（　　）

同类题5

What's his name?

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