神经调节的基本方式是（ ）
A：反射弧
B：应激性
C：适应性
D：反射
—Yes, great changes have taken place these years.
广场上的小朋友摔倒了，腿摔破了，我上前把他扶起来，送往____包扎。
Every Earth Day , We are made _____ signs to warn people to protect the nature .
