电路如图18-3-33所示,设DA,DB为理想二极管,当VA=3V,VB=6V时,I等于()。
A.3mA
B.2mA
C.4mA
D.1.5mA
参考答案:A
I have a lot of interesting topics to discuss with you. Will you come to me after school ______?
A.when you are very convenient
B.when it is convenient to you
C.in the convenience of you
D.when it is convenient by you
在工程咨询单位资格等级认定标准中,对甲、乙、丙三级要求条件相同的是( )。
A.注册资金B.技术装备C.办公场所人均使用面积D.生产技术人员数量