主页
学科
搜索
账户
常见问题
当前学科:耳科
题目:
单选
通过听骨链的杠杆作用,可使声压自锤骨柄传至前庭窗时增加的倍数是()。
A . 17倍
B . 2.5倍
C . 22.1倍
D . 1.3倍
E . 以上均不对
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
长焰煤的孔隙度平均为()左右。
女,32岁,婚后3年未孕。有进行性痛经,妇科检查触及痛性结节,曾服达那唑病情缓解,停药后又复发,拟行腹腔镜诊疗。对此患者镜下最佳治疗方案是()
新疆维吾尔族自治区境内生活着汉族、维吾尔族、哈萨克族等()个民族。
有下列行为()之一的,给予警告至记过处分;造成不良后果的,给予记大过至降级处分;造成严重后果的,给予撤职至开除处分。
法的制定需要经过讨论与确立两个阶段。()
血液白细胞增多,异型淋巴细胞增多,血小板减少多见于()。
From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 1 , they were like newborn children, unable to use this 2 tool. Yet once language developed, the possibilities for human kind’s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 that our highly evolved brain provides us 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually, 9 a function of the growth of the brain during childhood. Therefore there are critical 10 times for language development. Current 11 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed. 16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones. 请在10处填上正确答案()
储蓄国债(电子式)提前兑取该交易由普通柜员操作,提兑金额超过N元,N为总行进行参数设置,现为()万元,需由综合柜员授权。
《环境噪声污染防治法》规定,在城市市区范围内不得向周围生活环境排放建筑施工噪声;在市区外向周围环境排放建筑施工噪声的,应当符合国家规定的建筑施工场界环境噪声排放标准。
料球比就是磨内研磨体质量与物料质量之比。