直肠脱病程较久者易引起（）（1244-5）A、重剧腹泻B、重剧腹痛C、前列腺炎D、膀

下列疾病中能自行缓解的是

A．寻常型天疱疮

B．瘢痕性类天疱疮

C．糜烂型扁平苔藓

D．大疱性类天疱疮

E．大疱性表皮松解症

假定某企业2011年的税后收益为50万元，支出的利息费用为20万元，其所得税税率为35%，且该年度其平均资产总额为l80万元，则其资产回报率(ROA)约为()

A.33%

B.35%

C.37%

D.41%

The weather predictions for Asia in 2050 read like a story from a doomsday movie．

Many experts and green groups fear they will come true unless there is a united global effort to hold back greenhouse gas outpouring．In the decades to come, Asia—home to more than half the world's 63 billion people—will change from one climate extreme to another, with tired farmers battling droughts, floods, disease, food shortages and rising sea levels．

"It's not a pretty picture," said Steve Sawyer, climate policy adviser with Greenpeace in Amsterdam．Global warming and changes of weather patterns are already occurring and there is more than enough carbon dioxide and other greenhouse gases in the atmosphere to drive climate change for decades to come．

Already, changes are being felt in Asia but worse is likely to come．Sawyer and top climate bodies say, and could lead to mass migration and widespread human disasters．According to predictions, icebergs will melt faster, some Pacific and Indian Ocean islands will have to evacuate or build sea defenses, storms will become stronger and insects and water-borne diseases will move into new areas as the world warms．

All this comes on top of rising populations and demand for food, water and other resources．Experts say environmental worsening such as deforestation and pollution will likely enlarge the results of climate change．

In what could be a sign of the future, Japan was hit by a record of 10 typhoons and tropical storms this year, while two - thirds of Bangladesh, parts of Nepal and large areas of northeastern India were flooded, affecting 50 million people, destroying livelihoods and making tens of thousands ill．

The year before, a winter cold strike and a summer heat wave killed more than 2,000 people in India．

小题1:This passage is mainly about ____ ．

A．present situation and predictions of environmental problems in Asia.

B．the weather predictions for Asia in the future and the reasons

C．how to improve our environment

D．reasons why the world will no longer be suitable for us to live in小题2:In the future the Asian farmers will have to face the following except ____ ．

A．food shortages

B．droughts

C．wars

D．floods小题3:The underlined word "doomsday" in the first paragraph may mean____ ．

A．the hell

B．the end of the world

C．a great world war

D．disaster小题4:Which of the following is NOT true according to the passage?

A．Asian climate will change greatly．

B．Some islands may be flooded in the future．

C．More than 50 million people have been ill in Asia the year before．

D．People may meet with some new diseases borne from water．

简述旅游资源开发的基本含义和具体原则。

某桥梁工程，合同工期15个月，总监理工程师批准的施工进度计划如下图所示。

工程实施过程中发生下列事件：

事件一：项目监理机构对G工作进行验收时发现该工程质量达不到合格标准，需加固补强，导致直接经济损失60万元。

事件二：在第5个月初到第8个月末的施工过程中，由于建设单位提出工程变更，使施工进度受到较大影响。

截至第8个月末，未完工作尚需作业时间见下表。施工单位按索赔程序向项目监理机构提出了工程延期的要求。

事件二中，逐项分析第8个月末E、F工作的拖后时间及对工期和后续工作的影响程度，并说明理由。