在某个真实或特定的环境下种群的实际出生率叫______。

（10分）阅读下列材料    

材料一 1945年8月20日蒋介石再次邀请毛 * * 到重庆谈判的电报：“大战方告结束，内争不容再有……如何以建国之功收抗战之果，甚有 赖于先生之惠然一行，共定大计……。”

材料二 1945年10月13日蒋介石给陆军总司令何应钦密电：“抗战胜利，日寇投降，……乃 * * 匪竟……企图破坏统一以遂其割据之阴谋，若不速予剿除，不仅八年抗战前功尽失，且必遗害无穷……此次剿共为人民幸福之所系，务本以往抗战之精神，遵照中正（注：蒋介石）所订剿非手本，督励所属，努力进剿，迅速完成任务……。”

材料三 1945年11月6日蒋介石对高级将领的演讲：“回想这20年来， * * 匪始终是本党惟一的敌人。”

材料四 （美国总统）杜鲁门回忆录：“事实上，蒋介石甚至连再占领华南都有极大困难……如果他不同 * * 党人及俄国人达成协议，他就休想进入东北。由于 * * 党人占领了铁路中间的地方，蒋介石要想占领东北和中南就不可能……假如我们让日本人立即放下他们的武器……那么整个中国就会被 * * 党人拿过去……因此，我们便命令日本人守着他们的岗位和维护秩序，等到蒋介石的军队一到，日本军队便向他们投降……这种利用日本军队阻止 * * 党人的办法是国防部和国务院的联合决定而经我批准的。”

请回答：

（1）蒋介石电邀毛 * * 到重庆谈判的理由是什么？国共双方经过9－10月的谈判，有什么结果？

（2）蒋介石对中 * * 党的真实态度是什么？在上述材料中有何依据？在当时的实际行动中有何表现？

（3）蒋介石当时为什么耍弄反革命两手？在上述材料中有何依据？

（4）对于蒋介石玩弄的反革命两手，美国政府采取什么态度？这在上引材料和历史事实中有什么依据

马鞍山是我国重要的钢铁基地，位于黄河沿岸。[ ]

Allen : I’ve never been a big fan of the bears , especially the vacation show . On my last trip to Disneyland (1999) we passed it by , because we didn’t want to spend the time on something we didn’t really enjoy. If we’d known it would be closed by our next visit , I’m sure we would have watched it one more time . I was just making the point that it wasn’t until Disney announced the closing that this feeling suddenly sprang (弹跳) up for the Country Bear show at Disneyland .

But I think the idea of keeping some attractions (胜迹) open forever regardless of (不顾及) the number of visitors it gets is a mistake . We all have great memories of the Bears , but clearly very few kids today (or I should say families today ) are making those same memories from this show . That may be a sad fact , but it’s a fact . For whatever reason , the show doesn’t pull in the numbers . Isn’t it right to use the Country Bear space to bring in a more popular attraction so that more kids today can make those magic memories of an attraction THEY like ? Otherwise aren’t we just telling kids today that they “have to” make great memories of the Bears , when it’s obvious that the kids themselves are not enjoying the Bears like we did ?

Roger : I am very disappointed that they have decided to retire the Country Bear Playhouse . I remember going to the show as a child , and still enjoyed it as a teenager ,

and now young adult . It is true that there aren’t a lot of shows left at DL and with this one closing even less . Being at DL does require a lot of walking , and it is nice to have a few attractions that are a place to sit and enjoy a good show . I understand that DL has to develop , but there has to be some history to the Disneyland that Walt Disney first designed . There should be some parts of DL that just never go away , and this is one of them . By the time I have children it looks like there won’t be any attractions that I can say I went to as a child at the rate they are going .

Now the Bears are leaving . What I want to say is: stop trying to compete with everyone ! DL is the best , because of attractions like the Country Bears . If DL insists on destroying all of its magic to make way for the latest , well , then it might as well be just another theme (主题) park .

小题1:What news might get people talking about the problem of the Country Bears ?

A．The Country Bear Playhouse will be closed .

B．There will be a new attraction for our guests at Disneyland

C．The number of visitors to the Country Bear Playhouse is falling .

D．The Bears will retire because of old age and can’t give shows any more .小题2:Allen spoke mainly to get his point across that           .

A．the Bears will be missed

B．we should tell kids today that they “have to” make great memories of the Bears

C．the longtime attraction ought to make way for a future attraction

D．people never care about what they have until all is lost小题3:Which is the best choice to complete Roger’s idea : “The Country Bears have been a part of Disneyland for nearly 30 years ,         .”

A．and I feel it is time to give our bears a good rest

B．but anyway , the attraction has lost interest

C．but I know that Disneyland will always be changing , and I accept that

D．and I am sad that the Bears will be leaving小题4:Which of the following is not in the same group as the other three ?

A．an attraction

B．a theme park

C．the Bears

D．the latest magic小题5:Where can this passage be found ?

A．In a Web discussion zone (区).

B．In a suggestion book .

C．In a report on the popularity of the Country Bears .

D．In high school students’ compositions

按要求完成以下化学方程式：

（1）盐酸和氢氧化钠溶液混合____________。

（2）Ag、Al、Na₂SO₄溶液、稀H₂SO₄两两混合后能发生的某个反应___________________。

（3）FeS₂与空气中的O₂在高温条件下生成Fe₂O₃和一种刺激性气体的反应____________________。

WAP网关产生的告警信息共有几个告警级别？（）

A.8

B.7

C.6

D.5