压电式传感器可等效为一个电荷源和一个()并联,也可等效为一个与电容相串联的电压源。
参考答案:电容
休克的主要致死原因是()
A.肾小管坏死
B.肺间质水肿
C.心功能衰竭
D.DIC
E.MSOF
—What did he want to know,Anne?
—_____I could finish writing the report.[ ]
A.When it was that
B.It was when that
C.It was when
D.When was it that