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问题 单项选择题 配伍题

绒毛膜上皮癌Ⅰ期（）

A. * * 左侧壁有1.5cm直径紫蓝结节

B.宫腔组织病理报告"绒毛上皮细胞增生，绒毛间质水肿，血管消失"

C.子宫切除标本病理报告"滋养细胞增生侵入子宫肌层和血管，伴有大量出血坏死，不见绒毛结构"

D.A和B

E.A和C

答案

参考答案：C

单项选择题

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. \

What can protect the brain of a woman according to the passage

A. Estrogen.
B. The hormones of pregnancy.
C. More exercise.
D. Taking care of children.
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判断题

Credit     Risk+模型的一个基本假定是贷款组合的违约率服从二项分布。()
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