如何選擇CPM？

假如有下面的列表：
& {3 r( }) r$ W. Z$ r Free Char-Broil Barbeque  $0.40  
$ h& c) l& K% L4 y% X3 ^ 428  Original Free Smileys!!  $0.35  
  \3 U& n' p, v0 [) R/ A 511  EducationProvider.com - Online Degrees  $0.35  
, v: w. A7 [! C5 O. S. e 564  MyDishProvider.com - Free Digital Video Recorder  $0.35  
566  Bingoliner- Free Download  $0.35  
) r, k, H+ N) ] 441  Original Smiley Cursors!!  $0.35  
' Q2 N5 q; H2 L. X4 f) l 547  Free Screensavers - Instant Download  $0.35  
567  Free Magnavox DVD Home Theater  $0.35  
6 M) }; O, K9 A+ Z  A$ Q9 m3 ? 489  FreeBingoRoom.com  $0.35  
562  Net Survey Panel  $0.35  
- }  L7 t' V2 e! A1 f 370  Find Romance - Offline Dating  $0.33  
1 |$ |# |1 B" n* K 107  Need a New Computer? No Credit - No Problem!  $0.30  
548  Voks Hair Care  $0.30  
2 O2 R* k: N: O7 `& x7 q! w0 j 399  Car Quote Provider - New Car Quotes  $0.30  
494  Stamps.com  $0.30  
358  PayDayRightAway  $0.30  
* S' [" w" @; d  M, a5 G  @ 480  Lexington Law Credit Repair  $0.30  
* S) v4 L1 Z) w5 \; J- U 281  Miracle Burn  $0.30  
438  International Star Council - Name a Star!  $0.30  
166  Emergency Debt Relief  $0.30  
531  My Dino Phonics  $0.30  
( k5 `1 c- m+ P* } 422  Accuquote - Life Insurance Leads  $0.30  
8 a' R# ~0 G) t$ g 388  RapidCashProvider - 1 Page Cash Advance  $0.30  
355  American Singles - 1 page lead  $0.30  
479  Nexiderm - Facial Cream Free Sample  $0.30  
/ @8 X) z# \; ] 167  Cash Advance Expert  $0.30  

解釋下啊，

8

548-諧音 死吧：《