患儿男，12个月。维生素D缺乏性佝偻病，建议家长带患儿活动正确的是（）

A.尽早练习行走

B.被动锻炼时要用力牵拉

C.胸廓畸形做仰卧展胸运动

D."O"型腿按摩外侧肌群

E."X"型腿按摩外侧肌群

What is said about the research paper

A．The paper came out as short as I expected.

B．Actually the paper was long enough to cover it.

C．The paper was short enough to present.

D．The paper turned out better than I had expected.