与Ge(Li)探测器比,下列哪项不是高纯锗的突出优点
A.避免锂漂移过程B.置备工艺简单C.可在室温下储存D.入射窗薄E.能量分辨率高
参考答案:E
一个正方形与长方形的面积相等.正方形的边长是8厘米,长方形的长是16厘米,宽是______厘米.
The class is discussing a newspaper editorial that ________ citizens to help reduce the noise and
air pollution in the city.
A. urges
B. promises
C. demands
D. orders