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【单选题】
Learning disabilities are very common. They 【21】______ perhaps 10 percent of all children. Scientists now know there are many different kinds of learning disabilities and that they are 【22】______ by many different things. There is no longer any 【23】______ that all learning disabilities 【24】______ differences in the way the brain is organized. Since there is no 【25】______ sign of the disorder, some researchers began looking at the brain itself to learn what might be wrong. In one study, researchers 【26】______ the brain of a learning-disabled person. They found two unusual things. One 【27】______ cells in the left side of the brain, which control language. These cells 【28】______ are white, in the learning disabled person, 【29】______ , these cells were gray. The researchers also found that many of the nerve cells were not in a line the 【30】______ they should have been. The nerve cells were mixed together. The study was carded out 【31】______ the guidance of Norman Geschwind, an expert on learning disabilities. Doctor Geschwind 【32】______ that learning disabilities resulted mainly from problems in the left side of the brain, and this part of brain failed to develop normally. Probably, he said, nerve cells there did not connect 【33】______ they should. So the brain was like an electrical device in which the wires were 【34】______ . Other researchers did not examine brain 【35】______ Instead, they measured the brain's electrical activity and made a map of the electrical 【36】______ . Frank Duffy experimented with this 【37】______ and found large differences in the brain activity of normal children and those with reading problems. The differences appeared 【38】______ the brain. Doctor Duffy said his research is 【39】______ that reading disabilities involve 【40】______ to a wide area of the brain, not just the left side. 【21】
A.
influence
B.
effect
C.
affect
D.
shape
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错误
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A.
正确
B.
错误
【判断题】起动继电器的作用是以小电流控制大电流,保护点火开关。
A.
正确
B.
错误
【判断题】SQL语句中逻辑运算符and和or的优先级是一样的。
A.
正确
B.
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【单选题】爱国、敬业、诚信、友善,这一价值追求
A.
回答了我们要培育什么样的生态的重大问题
B.
回答了我们要培育什么样的公民的重大问题
C.
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D.
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A.
培育什么样的公民
B.
建设什么样的党
C.
建设什么样的社会
D.
建设什么样的国家
【单选题】爱国、敬业、诚信、友善这一价值追求回答了我们要( )的重大问题。
A.
建设什么样的国家
B.
建设什么样的社会
C.
培育什么样的公民
D.
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【判断题】起动继电器的作用就是以小电流控制大电流,保护点火开关,减少起动机电磁开关线路压降
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B.
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【多选题】叶状孢子分为下列哪几种
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分生孢子
B.
芽生孢子
C.
关节孢子
D.
孢子囊孢子
E.
厚膜孢子
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A.
正确
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