diff --git a/history/003b_simple/src/main/java/com/github/drinkjava2/frog/brain/organ/Line.java b/history/003b_simple/src/main/java/com/github/drinkjava2/frog/brain/organ/Line.java
new file mode 100644
index 0000000..e418525
--- /dev/null
+++ b/history/003b_simple/src/main/java/com/github/drinkjava2/frog/brain/organ/Line.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2018 the original author or authors. 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+ * OF ANY KIND, either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ */
+package com.github.drinkjava2.frog.brain.organ;
+
+import java.awt.Color;
+
+import com.github.drinkjava2.frog.Env;
+import com.github.drinkjava2.frog.Frog;
+import com.github.drinkjava2.frog.brain.BrainPicture;
+import com.github.drinkjava2.frog.brain.Cell;
+import com.github.drinkjava2.frog.brain.Input;
+import com.github.drinkjava2.frog.brain.Organ;
+import com.github.drinkjava2.frog.brain.Output;
+import com.github.drinkjava2.frog.brain.Zone;
+import com.github.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * Line
+ * 
+ * 这是一个随机方式连接两端的Organ，它是从旧版的RandomConnectGroup改造过来，这是一种最简单的神经元排列方式，
+ * 
+ * @author Yong Zhu
+ * @since 1.0
+ */
+public class Line extends Organ { 
+	private static final long serialVersionUID = 1L;
+
+	public Zone inputZone; // 输入触突区
+	public Zone outputZone; // 输出触突区
+
+	@Override
+	public boolean allowBorrow() { // 是否允许在精子中将这个器官借出
+		return true;
+	}
+
+	@Override
+	public void initFrog(Frog f) {
+		if (!initilized) {
+			initilized = true;
+			// organWasteEnergy=.05f;
+			x = Env.FROG_BRAIN_WIDTH / 2;
+			y = Env.FROG_BRAIN_WIDTH / 2;
+			r = Env.FROG_BRAIN_WIDTH / 2;
+			inputZone = RandomUtils.randomPosInAnyFrogOrgan(f);
+			outputZone = RandomUtils.randomPosInAnyFrogOrgan(f);
+		}
+
+		this.fat = 0;// 每次fat清0，因为遗传下来的fat不为0
+
+		Cell c = new Cell();
+		Input in = new Input(inputZone);
+		in.cell = c;
+		c.input = in;
+
+		Output out = new Output(outputZone);
+		out.cell = c;
+		c.output = out;	
+
+		c.organ = this;
+		f.cells.add(c);
+	}
+
+	@Override
+	public Organ[] vary() {
+//		organOutputEnergy = RandomUtils.varyInLimit(organOutputEnergy, -3, 3);
+		if (fat <= 0)// 如果胖值为0，表示这个组的细胞没有用到，可以小概率丢掉它了
+			if (RandomUtils.percent(30))
+				return new Organ[] {};
+		if (RandomUtils.percent(3)) // 有3%的几率丢掉它，防止这个器官数量只增不减
+			return new Organ[] {};
+		return new Organ[] { this };
+	}
+
+	@Override
+	public void drawOnBrainPicture(Frog f, BrainPicture pic) {// 把自已这个器官在脑图上显示出来
+		if (fat <= 0)
+			pic.setColor(Color.LIGHT_GRAY); // 没用到? 灰色
+		else if (organOutputEnergy <= 0)
+			pic.setColor(Color.BLUE);
+		else
+			pic.setColor(Color.red); // 用到了?红色
+		pic.drawLine(inputZone, outputZone);
+		pic.drawZone(this);
+		pic.drawZone(inputZone);
+		pic.fillZone(outputZone);
+		pic.setColor(Color.red);
+
+		pic.drawCircle(outputZone); // 如果胖了，表示激活过了，下次下蛋少不了这一组
+	}
+
+}