某厂生产白水泥，对每一窑生产的水泥都需要测定其抗压强度，以确定水泥标号，一般是将水泥

— Do you ever quarrel ______ your family ______ which TV programme to watch?

— No, never.

A．about; with

B．over; with

C．to; about

D．with; about

A US-led War against Iraq broke out in March 20, 2003 without the agreement of the UN. They came less than two hours after Bush's deadline for Saddam leave his country has passed. There are about 250,000 US armies around Iraq. There are also armies from another countries, includes Britain and Australia, fighting with the American soldiers. Their force is much more bigger than that of Iraq. But they met strong resistance than they expected. “These things are never easy. There will have some difficult times ahead so the War is going on as its plan,” said British Prime Minister Blair.

下图是变形虫细胞的分裂过程的示意图，请按一次分裂的先后顺序排列，正确的是

A．1→2→3→4

B．2→3→4→1

C．3→1→4→2

D．3→4→1→2

请按要求用化学符号表示下列粒子：

①氯化钠分子__________；

②硫原子______________。

下列关于蓄热室说法正确的是（）。

A.是煤气燃烧的地方，通过两侧炭化室的隔墙向炭化室提供热量

B.为了回收利用焦炉燃烧废气的热量用来预热贫煤气和空气，一般设在焦炉炉体下部

C.包括立火道测温用的看火孔、装煤孔和从炭化室导出粗煤气用的上升管孔

D.顶盖层以亡采用黏土砖、红砖和隔热砖砌筑