读一读，排一排。

How to plant a tree:

( ) Water it.

( ) First, dig the soil.

( ) Wait for it to grow.

( ) Then put the plant in the soil.

肠扭转的典型腹部X线平片表现为（）

A.多处液气平

B.膈下游离气体

C.马蹄状巨大的双腔充气肠袢

D.鱼刺征

E.阶梯征