搜题请搜索小程序“爱下问搜题”
问题 单项选择题

根据《民用爆炸物品安全管理条例》规定，未按照规定对民用爆炸物品做出警示标识、登记标识或者未对雷管编码打号的罚款（）；逾期不改正的，责令停产停业整顿。

A、1万元以下

B、5万元以下

C、5~20万元

D、20~50万元

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. \

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
查看答案
单项选择题 A1/A2型题

牙拔除过程中可损伤软组织，最常见者为（）。

A.唇

B.颊

C.牙龈

D.舌

E.腭
查看答案