根据对话内容,从方框内的选项中选出能填入空白处的最佳选项,其中有两个为多余选

A: Did you hear about the flood in Wuhan last night?

B: No. ____

A: My e-friend Lin Tao told me about it.It rained for a long time.

B:  ____

A: For about two weeks.

B:  ____

A: Yes, it was very terrible.There was water all around his house. Most of his furniture and his books get wet.

B:  ____ Did your e—friend still live in his house?

A: No. ____ There was no flood there because his uncle lives far away.

A. Oh, really?

B. That sounded bad.

C. He and his family moved to his uncle's house.

D. What happened?

E. How long did the rain last?

F. That sounded great.

G. That's all right.

A．电源E（电动势为4V）；

B．电流表A₁（量程5mA，内阻约为10Ω）；

C．电流表A₂（量程0.6A，内阻约为1Ω）；

D．电压表V₁（量程3V，内阻约为1kΩ）；

E．电压表V₂（量程15V，内阻约为3kΩ）；

F．滑动变阻器R₁（阻值0～2Ω）；

G．滑动变阻器R₂（阻值0～20Ω）；

H．开关及导线若干．

他对电阻丝做了有关测量，数据如下表所示．

某产品分为甲、乙、丙三级，其中乙、丙两级均属次品，若生产中出现乙级品的概率0.03，出现丙级品的概率0.01，则对产品抽查一次抽得正品的概率是（　　）