子宫内膜异位症声像图特征是（）①子宫增大，形态饱满②子宫肌壁回声粗糙不均匀，与宫壁无

关于孕激素生理作用的叙述，正确的是（）

A.使宫口闭合，黏液分泌增多

B.促使乳腺腺管增生， * * 、乳晕着色

C.促进 * * 上皮细胞增生和角化，细胞内糖原增加

D.降低子宫平滑肌兴奋性及其对缩宫素的敏感性

E.抑制输卵管收缩节律及振幅，促进纤毛上皮生长，调节孕卵运行

十六届四中全会提出,加强党的执政能力建设的关键是( ).

A．建设高素质干部队伍

B．确立党的思想路线

C．完善党的领导体制

D．加强党的制度建设

(10分)向含有0.8 mol的稀硝酸中慢慢加入22.4 g的铁粉，假设反应分为两个阶段。

第一阶段为：Fe＋HNO₃(稀)―→Fe(NO₃)₃＋NO↑＋H₂O

（1）写出这两个阶段发生反应的离子方程式：

第一阶段：                                                                  。

第二阶段：                                                                  。

（2）正确表达这两个阶段反应中，加入铁粉的物质的量与溶液中铁元素存在的形式的关系

                                                                            。

（3）在图中画出溶液中Fe^2＋、Fe^3＋、NO的物质的量随加入铁粉的物质的量变化的关系图象(横坐标为加入铁粉的物质的量，纵坐标是溶液中离子的物质的量)。

阅读理解。

     Climate scientists hit back at disbelievers yesterday with a new study which brought about the evidence

for man-made global war ming was"stronger than ever".

     After analyzing more than 100 scientific papers published in the last few years, a team of British

researchers say there is an"in creasingly small possibility" that the world is warming up because of natural

variations (变动) in climate.

     Instead, man-made global warming-caused by the burning of fossil fuels-is making its mark on every

continent and ocean, they say.

     The studies used computer models to see whether changes in air temperature, sea ice, sea temperature,

wetness, rainfall and ocean saltiness recorded in the last 50 years could be explained by nature.

     Since 1980,the average global temperature has increased by around0.5℃,they found. The same warming

pattern was also found deep in the world's oceans.

     Natural forces such as volcanic eruptions and returning chan ges in the brightness of the sun could not

explain what was happen- ing to the world's climate, Dr Stott said.

     The sun's output had actually fallen over the last 50 years, he said.

     Even if the sun had got warmer over the last few decades-as some skeptics say-both the upper and lower

layers of the atmos phere should have got hotter.

     However, in the last 50 years the lower atmosphere has warmed while the upper atmosphere has actually

cooled, Dr Stott said.

     Drier parts of the world are getting drier, while wetter areas are getting more rain-a finding in agreement

with man-made climate change, the report found.

     And the amount of mid summer sea ice in the Arctic is also declining over time-even with the natural

yearly variations, the study found.

     The study comes along with growing public doubt about climate change.

1. With enough evidence the climate scientists prove _____.

A. global warming is disappearing recently

B. mankind isn't to blame for global warming

C. mankind is to blame for global warming

D. global warming will disappear sooner or later

2. What caused the global warming according to the British researchers?

A. Frequent volcanic eruptions across the world.

B. The increase of the brightness of the sun.

C. The warming pattern of the world's oceans.

D. The burning of fossil fuels by the human being.

3. The underlined word "skeptics" in Paragraph 8 refers these people who_____.

A. believe that mankind is to blame for global warming

B. believe global warming will disappear sooner or later

C. doubt the global warming will disappear sooner or later

D. doubt the global warming is caused by humankind

4. What can we infer from the last sentence of the passage?

A. The study has made the public live in a terrible dream at present.

B. Many people don't believe the study of the British researchers now.

C. The public have been used to the climate changes these years.

D. The result of the study comes from the opinions of the public.

二十世纪初，为了研究物质内部的结构，物理学家做了大量的实验，揭示了原子内部的结构，发现了电子、中子和质子，下图是

A．卢瑟福的α粒子散射实验装置

B．卢瑟福发现质子的实验装置

C．汤姆逊发现电子的实验装置

D．查德威克发现中子的实验装置