在测量吸收比时,可以在“L”端到被试品之间串入一支(),这样就可以在测量之后不必先断开“L”端,也能有效地保护兆欧表。
A.电阻
B.整流二极管
C.三极管
D.电抗器
参考答案:B
Though in fact he got ,there was no doubt that he had meant to offer help.
A.in a way
B.in the way
C.on the way
D.by the way
拟办,指:
A.拟稿B.对发文审核把关C.对来文办理做出批示D.对来文办理提出初步方案或建议