--Huang, would you mind if I used your Pipa for the coming singing competition?

---________

A．Yes, of course you can.

B．Certainly, please use it.

C．No, you can’t use it.

D．No, go ahead.

华支睾吸虫病的感染是由于吞入了

A．尾蚴
B．毛蚴
C．囊蚴
D．雷蚴
E．虫卵