由腹腔干分支营养的器官是（ ）。
A．甲状旁腺
B．肾
C．降结肠
D．脾
E．盲肠
参考答案：D
You _______ ever saw computers years ago, but now they are everywhere. [ ]
A. sometimes
B. usually
C. hardly
D. almost
调中益气汤功效与作用
