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（体验探究题）阅读下面的文字后，回答问题： 题目：已知a+ 1-2a+ a 2 ，其中a=9，先化简式子，再求值．下面为小明和小芳的解答． 小明的解答是：=a+ (1-a) 2 =a+1-a=1． 小芳的解答是：=a+ (1-a) 2 =a+a-1=2a-1=2×9-1=17． （1）______的解答是错误的． （2）错误的解答未能正确运用二次根式的性质：______=______．
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【单选题】You can conclude that the author thinks that if a person took a computer course, that person would learn ______.
A.
very quickly
B.
as much as the author's co-workers
C.
to think like a computer
D.
about computers the easy way
【简答题】无船承运人的船期表和船公司的船期表相比有什么特点
【单选题】The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twins brain are smaller than corresponding areas i...
A.
The brain of a person suffering from schizophrenia is smaller than the brain of anyone not suffering from schizophrenia.
B.
The relative smallness of certain parts of the brains of schizophrenics is not the result of schizophrenia or of medications used in its treatment.
C.
The brain of a person with an identical twin is no smaller, on average, than the brain of a person who is not a twin.
D.
When a pair of identical twins both suffer from schizophrenia, their brains are the same size.
E.
People who have an identical twin are no more likely to suffer from schizophrenia than those who do not.
【简答题】完型填空There were once three sons of a wealthy businessman. ___1___ they met, the two eldest,who were twins, ___2___ to quarrel about which of them should be his father’s heir (继承人). The youngest, who wa...
【简答题】用列举法表示方程 的根所构成的集合。
【简答题】无船承运人的船期表和船公司的船期表相比有什么特点?
【多选题】Several gas properties have the same values for similar gases (such as paraffin hydrocarbons) at identical values of ( ).
A.
reduced pressure
B.
r educed temperature
C.
c ritical pressure
D.
c ritical temperature
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