______occurs when a competitor clicks on search engine results and ads, forcing the advertiser to pay for the click even though the click is not justified.
                    举一反三
- Your only pay once someone clicks on your advertisement A: Search Per Click B: Referral Per Click C: Pay Per Click D: Advertisement Per Click
 - Advertisers spend billions of yuan having their ads placed on top of search results via search engines.
 - With SEM, advertisers still need to pay when no one clicks on the advertisement.
 - Forcing a solution occurs when the manager or another third party steps in and forces a solution on the conflicting parties.
 - 在广告联盟营销付费方式中, “pay per click”指的是
 
