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【简答题】
晶体管用小信号模型代替的条件是什么?
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举一反三
【单选题】According to the author， what precautions should medical schools take to prevent students from cheating? 查看材料
A.
Medical schools should establish a firm moral standard to weed out applicants with low integrity.
B.
Medical schools should make efforts to remedy the ills of a society.
C.
Medical schools should teach future doctors integrity and ethical values.
D.
There is nothing medical schools can do to improve the ethical behaviour of their students.
【单选题】According to Gardner， schools should __________. 查看材料
A.
test students' IQs
B.
train students who do poorly on tests
C.
focus on finding the most intelligent students
D.
promote development of all intelligences
【多选题】管内强迫对流流动进口段内的流动状态是：
A.
流动边界层边缘尚未汇合，边界层外流速基本均匀。
B.
横截面上速度分布沿轴向不变。
C.
横截面上的速度呈抛物线分布。
D.
横截面上平均流速沿轴向不变。
【多选题】管内强迫对流流动进口段内的流动状态是:
A.
横截面上速度分布沿轴向不变。
B.
横截面上的速度呈抛物线分布。
C.
横截面上平均流速沿轴向不变。
D.
流动边界层边缘尚未汇合,边界层外流速基本均匀。
【单选题】Many American schools offer online programs，and international students______.
A.
should be careful of being cheated
B.
are certain to earn a degree
C.
should know about programming
D.
are faced with many difficulties
【单选题】What should public schools do to provide education to exceptional children?
A.
They should set the same educational pace to exceptional children as to other children.
B.
They should adjust their programs and instructions to exceptional children.
C.
They should give exceptional children special help to benefit from regular courses.
D.
They should assign new programs and instruction to exceptional children.
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