GB228.1-2010规定：试验一般在室温（）范围内进行。

It is not rare in     that people in      fifties were going to university for further education．

A．90s; the

B．the 90s；/

C．90s; their

D．the 90s; their

Hearing that he would have to be given another injection, the boy _ a smile to cover up his fear.

A．wore

B．managed

C．strengthened

D．controlled

“掌握美术表现、设计、创作的规律和欣赏、评价等基本方法，审美过程的基本要求，形成良好的美术学习习惯。”这属于哪个模块的教学目标？（）

A.“绘画”模块

B.“美术鉴赏”模块

C.“设计”模块

D.“工艺”模块

一种无痛苦、无忧无虑的状态是（）

A．休息

B．舒适

C．觉醒

D．睡眠

E．活动

说明多米诺骨牌的基本内容。