肾上腺髓质的细胞又称为（）；肾上腺的（）带细胞能分泌雄激素。
参考答案：嗜铬细胞；网状
A．力是物体对物体的作用，发生力的作用物体必须相互接触
B．物体受到的重力是地球施加的，物体只在重心处受到重力作用
C．弹力产生的原因是施力物体发生弹性形变
D．静摩擦力是静止的物体受到的，滑动摩擦力是运动的物体受到的
句型转换
1. I have a pet named Panpan. (改为同义句)
I have a pet Panpan.
2. Shall we go for a walk? (改为同义句)
going for a walk?
3. How do you like the gift？(改为同义句)
the gift?
4. I think he will come here. (改为否定句)
I think he come here.
5. The maths problem is very difficult.
I can't work it out. (合并为一句)
The maths problem is difficult
work out.
