Howmanymonthsarethereinayear? Thereare .

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. \

Which title is the best for this passage

A. Do You Want to Be Smarter
B. Motherhood Makes Women Smarter
C. Mysterious Hormones
D. An Important Study

以阴阳失调来阐释真寒假热或真热假寒，其病机是（）。

A.阴阳偏盛

B.阴阳偏衰

C.阴阳格拒

D.阴阳互损

E.阴阳离决

CAD是( )的英文缩写。

A．计算机辅助工程

B．计算机辅助制造

C．计算机辅助设计

D．计算机辅助教学

根据阴阳学说，药有五味，下列属阴的是（）

A.辛、苦、甘

B.酸、苦、咸

C.辛、甘、酸

D.辛、甘、淡

E.辛、淡、咸

在实际工作中，由于对防空帽要求不高，往往不用样板，用笔勾画一下即可。