The price per click depends on the keyword, because ______.
A. the keyword will attract consumers to visit the advertiser's website.
B. the keyword relates to the commission.
C. the keyword will reflect the consumers' hobbies.
D. the keyword is the main part of the product.
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The PPA will become more popular due to ______.
A. the shortcoming of pay-per-click.
B. the fraud click.
C. the punishment for click fraud.
D. the adoption of leading operators.
It can be inferred from Paragraph 5 that ______.
A. the narcissistic boss like to do a lot of research in spending and leverage.
B. the boss is rather keen on himself than his subordinate.
C. the narcissistic boss's always got the outstanding achievement.
D. the person who seeks positions of power and influence will become narcissistic.
What is the author's attitude towards the foundation of barriers over the bridge？
A. Optimistic.
B. Critical.
C. Biased.
D. Objective.
Why does the author mention Niagara Falls and honeymooners？
A. Because Niagara Falls and honeymooners are as well-known as the Golden Gate Bridge.
Because Niagara Falls is the resort for couples who spend their holidays.
C. Because Niagara Falls attracts honeymooners the same way the Bridge does to suicides.
D. Because Niagara Falls is a magnificent place for honeymooners to gather around there.
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