DME是（）的简称。 A.耐用医疗设备 B.流量控制设备 C.超声设备 D.红外设备

温 * * * * 在2007年国家科学技术奖励大会上强调：当今世界，科学技术是综合国力竞争的决定性因素。自主创新是支撑整个国家崛起的筋骨，我们要引进和学习世界上先进的科技成果，但更重要的是立足自主创新，真正的核心技术是买不来的。“自主创新是支撑一个国家崛起的筋骨”，所以我们必须把___________提高到关系中 * * 兴衰存亡的高度来认识。 [ ]

A、以德治国

B、诚实守信

C、增强民族创新能力

D、反对霸权主义

核输出信号（NES）

.

Two more hours, _______ we will finish the work.

A．or

B．so that

C．and

D．if

一患者使用某化妆品后5~7天，再次使用时局部皮肤出现红肿、水疱、大疱，病变皮肤边界不清。患处有瘙痒和灼热感。此病情应诊断为（）

A.刺激性接触性皮炎

B.变应性接触性皮炎

C.光敏性皮炎

D.光毒性皮炎

E.急性皮炎

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. \

How do scientists know "motherhood may make women smarter"()

A. Some researchers have told them.

B. Many women say so.

C. They know it by experimenting on rats.

D. They know it through their own experience.