放置宫内节育器的并发症有（） A.出血 B.子宫穿孔损伤脏器 C.盆腔感染 D.血栓

A. Which bus goes to the hospital? B. This little girl brought me here. C. You can take a bus. D. The No. 3 bus will take you there. E. Let's ask this policeman. F. It'll take you about half an hour. G. We'd better take a bus.

A: How can I get there? I don't know the way. 　　
B: 1.            He may know. Excuse me! Which is the way to the North Hospital? 　　
C: Go down this street until you reach the second traffic lights. Turn right. At he end of the road you'll see
    the hospital. 2.             　　
B: Half an hour? That's too long! Is there a bus? 　　
C: Yes. 3.             　　
B: Thanks a lot. Granny, the hospital is not very near. 4.            I'll go with you. 　　
A: How kind! Thank you. 　　
(Twenty minutes later. In the hospital the woman finds her husband.)　　
D: But how did you get here? 　　
A: By bus. 5.            　　
D: Which girl? I must thank her!