从学校到科技馆,王军用10分钟,李虹用8分钟,王军和李虹的速度比是4:5.______.(判断对错)
110:18=4:5;
答:王军和李虹的速度比是4:5.
故答案为:√.
Look at the picture and answer the question. 看图,回答问题。
1. What's her name? Her name is .
2. What is it? It's .
3. Where is the chalk? It is the pen.
4. Is this a pencil or an eraser?
.
关于脊髓γ运动神经元的叙述,下列哪项正确()
A、为脊髓内的大型细胞
B、其轴突支配梭外肌
C、兴奋时对α运动神经元有抑制作用
D、其作用与肌张力的调节有关
E、接受Renshaw细胞的轴突