对于保管期满但未结清的债权债务原始凭证和涉及其他未了事项的原始凭证，正确的处理是(

_____ the poem a second time, the meaning will become clearer to you.

A．Our having read

B．When you read

C．While reading　

D．If reading

女孩，2岁，身长60cm，会坐，不会站，肌张力低，表情呆滞，眼距宽，鼻梁低，眼外侧上斜，伸舌流涎，四肢短，手指粗短，小指内弯，最可能的诊断

A．佝偻病

B．苯丙酮尿症

C．营养不良

D．21 - 三体综合征

E．先天性甲状腺功能减低症

下列哪项不是结核病患者的诊断方法

A．流行病学依据

B．血清学检查

C．结核菌素试验

D．痰结核菌检查

E．X线检查

用所给词的正确形式填空。

1. "Do you like noodles?" "No, I don’t like _____ at all."( they )

2. He often _____ letters to his mother. ( write )

3. Our _____ begin at 7:30 every morning. ( class )

4. We are twins. I have long hair, and she _____ long hair, too. ( have )

5. The _____ like milk and cakes. (baby)

炎症的局部基本病理变化是什么？