男,25岁。晨起觉脐周疼痛,伴恶心,午后觉右下腹明显疼痛,不能忍受。查体:T38.0℃,BP110/81mmHg,右下腹肌紧张、压痛、反跳痛阳性。为明确诊断首选的检查是 ( )。
男,25岁。晨起觉脐周疼痛,伴恶心,午后觉右下腹明显疼痛,不能忍受。查体:T38.0℃,BP110/81mmHg,右下腹肌紧张、压痛、反跳痛阳性。为明确诊断首选的检查是 ( )。
某男,62岁。患前列腺增生瘫10年,症见腰膝酸软,尿频急、尿痛、尿线细、伴小腹拘急疼痛,脏属肾气不足、湿热瘀阻所致的癃闭,治当益肾活血、清热通淋宜选用的成药是( )
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 underlined part "hard-wired" in Paragraph l probably means ______.
患者男性,75岁,因心衰伴心房颤动而应用地高辛0.25mg,qd,共5天,同时并用呋塞米。下列关于呋塞米的说法中错误的是( )
延长美国的学年,使它与欧洲和日本的相一致的建议经常会遭到这样的反对:削减学校的三个月的暑假将会违反已确定的可追溯到19世纪的美国传统。然而,这种反对却不得要领。确实,在19世纪,大多数的学校在夏季都放假三个月,但这仅仅是因为在农村地区,成功的收割离不开孩子们的劳动。如果任何政策只有迎合传统才是合理的,就应该根据经济需要来确定学年长度。上述论述通过哪项来进行反驳?()