题目内容

A major accomplishment of sociology is dispelling the myths and prejudices that groups of people have about each other.Dispelling means

A. ignoring.
B. making vanish.
C. creating again.

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Ten years of research culminated in a report explaining the mysterious behavior of the praying mantis, a large green or brownish insect.Culminated means

A. failed.
B. began.
C. concluded.

Despite complaints from parents, educators, and government officials, violence and sex on television seem to go on unabated.Unabated means

A. more slowly.
B. unstopped.
C. at great expense.

下列类型的传感器中，如果都用来测位移，则：电容变化量与位移呈现线性关系：①变极距（间隙）型传感器；②变面积型传感器；③变介电常数型传感器。

A. ①和②
B. ②和③
C. ①和③
D. ①②③

除外，其它方法都可以有效减少电容电场的边缘效应：

A. 增大电容极板的面积；
B. 减少两个极板的间距；
C. 加装保护环；
D. 上述方法都不可取