柏林国际电影节“金熊奖”授予()。
贷款流程中的风险不包括( )。
成年男性,体检用ELISA试验发现血液中HIV抗体阳性。确认实验用
下列关于我国国情表述不正确的一项是()
Passage 1 It's one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it and run away in fear. This has always been thought to be something that is
into a mouse's brain. But now Wendy Ingram, a graduate student at the University of California, Berkeley, has challenged this common sense. She has found a way to "cure" mice of their inborn fear of cats by infecting them with a parasite, reported the science journal Nature. The parasite, called Toxoplasma gondii, might sound unfamiliar to you, but the shocking fact is that up to one-third of people around the world are infected by it. This parasite can cause different diseases among humans, especially pregnant women-it is linked to blindness and the death of unborn babies. However, the parasite's effects on mice are unique. Ingram and her team measured how mice reacted to a cat's urine (尿) before and after it was infected by the parasite. They noted that normal mice stayed far away from the urine while mice that were infected with the parasite walked freely around the test area. But that's not all. The parasite was found to be more powerful than originally thought-even after researchers cured the mice of the infection. They no longer reacted with fear to a cat's smell, which could indicate that the infection has caused a permanent change in mice's brains. Why does a parasite change a mouse's brain instead of making it sick like it does to humans? The answer lies in evolution. "It's exciting scary to know how a parasite can manipulate a mouse's brain this way," Ingram said. But she also finds it inspiring. "Typically if you have a bacterial infection, you go to a doctor and take antibiotics and the infection is cleared and you expect all the symptoms to also go away." She said, but this study has proven that wrong. "This may have huge implications for infectious disease medicine."
The experiment found that mice infected with toxoplasma gondii ______.
班主任张老师决定,凡是考试成绩前三名的学生可以免除班级卫生义务。张老师的做法( )。
因为物理成绩不理想,汤畅很苦恼,熊老师找到她询问情况后,说:“除物理以外,其他学科成绩都不错。”汤畅听后有些释然,表示初中时理科知识学得非常好。“你当时怎么学的?”汤畅说:“坚持整理笔记,做配套练习。”熊老师说:“要不你再试试。”该情景中,熊老师的做法体现的教育关怀特点是( )
①教育性
②对等性
③有条件性
④理智性
②③④
①④
①②
①②③④