根据句意及汉语提示完成下列句子。

1. There are ________ (太多) things in her room.

2. Don't talk ________ (大声地) in the reading room.

3. He often helps her mother ________ (洗) clothes on Sundays.

4. ________ (后来) she knew the name of the singer.

5. Can you come here ________ (到……之前) five o'clock this afternoon?

可更好地观察胆囊底部的病变、胆管内积气和胆囊积气的移动（）

A．左侧卧位

B．右侧卧位

C．半卧位或坐位

D．膝胸卧位

E．仰卧位为最常用的体位