(2013·安徽蚌埠一次质检)So quickly ________ is a possibility today may be a reality tomorrow.

A．are science and technology advancing that

B．science and technology advancing are that

C．science and technology are advancing what that

D．are science and technology advancing that what

输尿管狭窄可由多种疾病引起，虽可见于任何年龄，但常见于小儿。其最常发生的部位为（）。

A.输尿管膀胱壁内段

B.输尿管的第二狭窄处

C.肾盂输尿管连接处

D.输尿管越髂血管处

E.以上均正确