计算小数除以整数时，商的小数点要和______的小数点______．

以下关于尿量的叙述不妥的是

A．正常成人24小时尿量为1000～2000ml
B．24小时尿量＞2500ml为多尿
C．24小时尿量＜400ml为少尿
D．24小时尿量＜100ml为无尿
E．夜尿持续大于400ml为夜尿增多

By using MP3, a 600M-byte music CD can be (70) to 50M bytes or less. It can be streamed (downloaded in chunks)so that you can begin listening to the opening bars while the (71) of the file arrives in the background. And, most important, MP3 music files retain good listening (72) that (73) compression schemes lacked. That (74) of features makes accessing and distributing music on the Web practical for the first time.

A．earlier

B．front

C．backward

D．later

二期锅炉下水包在每根水冷壁管入口处装有（）的节流孔板，控制每根水冷壁管的（），使在炉膛运行工况变化时循环仍然（）。

35kV直线杆一般选用（）m电杆。

A.6

B.8

C.12

D.15

钻井过程就是（）和（）的过程。