完成对话。

A: (1)                                                                                                                           ?

B: Go down this street, take the third crossing on the left, Then go straight ahead. Go past the supermarkt. 

    Walk about three blocks. You will see the post office is between the bank of China and the bookstore.

A: (2)                                                                                                                           ?

B: It's about fifeen minuts' walk. It's late now. you'd better take a bus.

A: (3)                                                                                                                            ?

B: No. 49 bus.

A: (4)                                                                                                                            ?

B: It will take you about five minutes to get there.

A: Thanks a lot.

B: (5)                                                                                                                             .

患者处于何种状态，超声检查容易发现精索静脉曲张

A．平卧位

B．立位

C．平静呼吸

D．深呼吸

E．半坐位