| Since about 1970, new research has
helped brain scientists understands these problems better. Scientists now know
there are many different kinds of learning disabilities and that they are caused
by many different things. There is no longer any question that all learning
disabilities result from differences in the way the brain is organized. You can’
t look at a child and tell if he or she has a learning disability. There is no
outward sign of the disorder. So some researchers began looking at the brain
itself to learn what might be wrong. In one study, researchers examined the brain of a learning disabled person who had died in an accident. They found two unusual things. One involved cells in the left side of the brain, which control language. These cells normally are white. In the learning disabled person, however, these ceils A. to investigate possible influences on brain development and organization B. to study how children learn to read and write, and use numbers C. to help learning disabled children to develop their intelligence D. to explore how the left side of the brain functions in language learning [单选题] 变压器套管是引线与( )间的绝缘。
A. 高压绕组 B. 低压绕组 C. 油箱 D. 铁芯 [单选题]依据《治安管理处罚法》的规定，下列情形应当从重处罚的是（）。
A.甲冒充国家机关工作人员招摇撞骗 B.乙冒充高级国家干部招摇撞骗 C.丙冒充记者招摇撞骗 D.丁冒充公安民警招摇撞骗 [简答题]假设ABC公司的股票现在的市价为30元。有1份以该股票为标的资产的看涨期权，执行价格为30．5元，到期时间是6个月。6个月以后股价有两种可能：上升35％，或者下降20％。无风险利率为每年4％。拟利用复制原理，建立一个投资组合，包括购进适量的股票以及借入必要的款项，使得该组合6个月后的价值与购进该看涨期权相等。计算利用复制原理所建组合中股票的数量（套期保值比率）为多少？
[单选题]冬眠时，蛙类会选择____来冬眠能维持最低水平的生命活动所需的能量，也是一种自我保护。
A.向阳面 B.背阳面 [判断题]冯特是构造主义心理学的奠基人
A.正确 B.错误 我来回答: 提交
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