读我国某局部地区地图，回答题： 小题1:有关图中甲地的说法正确的是（） A．气

某温度下，在容积固定不变的密闭容器中发生下列可逆反应： X（g）＋2Y（g）2Z（g）。平衡时，X、Y、Z的物质的量分别为1 mol、1 mol、2 mol，保持温度不变，再向容器中分别充入1 mol、

1 mol、2 mol的X、Y、Z，则下列叙述中正确的是[ ]

A．刚充入时，反应速率ν (正)减小，ν (逆)增大

B．达到新平衡时，容器内气体的平均相对分子质量增大

C．达到新平衡时，容器内气体的压强是原来的两倍

D．达到新平衡时，容器内气体的百分组成和原来相同

下列区域中、相互之间没有范围重叠的是（  ）

A．东北平原和湿润地区

B．珠江三角洲与亚热带

C．湖南省与温带季风气候

D．成都平原与四川盆地

室内公共场所禁止吸烟。从人体健康的角度分析，下列说法正确的是[ ]

A．吸烟能提神醒脑

B．吸烟能诱发多种呼吸系统疾病

C．吸烟有利于身心健康

D．吸烟不会危害周围人的身体健康

October 2, 2009

Dear Dr. Johnson,

The Economics Department of National University is pleased to appoint you to be this year’s guest speaker at the university’s annual international symposium (研讨会), which will be held for one week from December 2nd to 9th, 2009. This year’s topic will be regarding Asia Financial Crisis. About 35 people from across many countries will be attending the symposium. They would be glad to meet you and share their problems and interests with you.

The university will pay fee according to the enclosed contract.

As the program is to be announced on October 17th, 2009, will you kindly let us know by that time whether your busy schedule will allow you to attend our symposium We are looking forward to your favorable reply.

Dean of the Economics Department of National University

When will the symposium end？

It will end on（）.

三金以后我国又提出（）金工程。

A、10

B、11

C、12

D、13