“___________that again!” father shouted

句型转换

1. I want to buy her a present. (改为一般疑问句)

__________ you __________ to buy her a present?

2. Tom wears a new pair of shoes today. （改为一般疑问句）

__________ Tom __________ a new pair of shoes today?

3. Come early tomorrow. （改为否定句）

__________  __________ early tomorrow.

4. She often plays football for half an hour. （对划线部分提问）

__________  __________ __________ she often __________ football?

5. I usually help my mother do housework at the weekends. （对划线部分提问）

___________ ___________ you usually___________ at the weekends?

炎症灶中吸引炎细胞定向集中的现象称为()

A．白细胞游出

B．白细胞吞噬

C．白细胞阿米巴运动

D．阳性趋化性

E．白细胞渗出

下列行为不属于外部效应的是（）

A.向空中排放废气

B.在公路上倒污水

C.助人为乐的雷锋现象

D.政府腐败行为

地方政府融资平台的退出必须得到债权银行分支机构的审批。

试述溶胶-凝胶法制备陶瓷粉体的特点