肩疼痛，肩关节外展、外旋、后伸活动受限。最可能的诊断是（） A.髌骨软化症 B.颈椎

Tom is my uncle's son, so he is my ____________.            [ ]

A. brother          

B. sister            

C. cousin

下列不是属于生物进化总趋势的是（　　）

A．从简单到复杂

B．从水生到陆生

C．个体由小到大

D．从低等到高等

Motherhood may make women smarter and may help prevent dementia in old age by bathing the brain in protective hormones, US reseachers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s. University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
"Our research shows that the hormones of pregnancy are protecting the brain, including estrogen, which we know has many neuroprotective effects, " Kinsley said.
"It’s rat data but humans are mammals just like these animals are mammals, " he added in a telephone interview. "They go through pregnancy and hormonal changes. "
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
"When people think about pregnancy, they think about what happens to babies and the mother from the neck down, " said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
"They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations to the brain. \

"It’s rat data but humans are mammals just like these animals are mammals. "
What does the sentence suggest

A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.

（12分）随着人类对温室效应和资源短缺等问题的重视，如何降低大气中CO₂的含量及有效地开发利用CO₂，引起了各国的普遍重视。

⑴目前工业上有一种方法是用CO₂来生产燃料甲醇。为探究反应原理，现进行如下实验，在体积为1 L的密闭容器中，充入1mol CO₂和3mol H₂，一定条件下发生反应：

CO₂(g)＋3H₂(g)CH₃OH(g)＋H₂O(g) △H＝－49.0kJ/mol

测得CO₂和CH₃OH(g)的浓度随时间变化如图所示。

①从反应开始到平衡，氢气的平均反应速率v(H₂)＝___________mol/(L·min)。

②该反应的平衡常数表达式为__________________。

③下列措施中能使n(CH₃OH)／n(CO₂)增大的是___________。

A．升高温度

B．充入He(g)，使体系压强增大

C．将H₂O(g)从体系中分离

D．再充入1mol CO₂和3mol H₂⑵有人提出，可以设计反应2CO＝2C＋O₂来消除CO的污染。请你判断是否可行并说出理由：______________________________________________。

大多数财产保险公司的国内水路、陆路货物运输保险的保险金额是按照( )确定的。

A．市场价

B．到岸价

C．离岸价

D．目的地市价