Gun enthusiasts believe that ______.
A. teachers should carry guns to protect themselves.
B. gun carriers should be punished if they attempt to kill children.
C. it is too difficult for the teachers to obtain guns.
D. children should be protected by their teachers who carry guns.
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According to Helen Smith, why did the men kill others before they commit suicide？
A. They want to take revenge on the society.
B. They want to vent their anger on others before they die.
C. They want companionship instead of loneliness when they die.
D. They want to satisfy their sexual desire before their death.
The best title for the text may be ______.
A. It's All About Me: Is the Boss an All-conquering Hero.
B. The Brand of Me: Does the Boss in Your Corporation Have Narcissism.
C. Narcissistic Boss: To Be Or Not To Be.
D. The Studies of Narcissism.
Which of the following is true of the text？
Although the risk exists, the internet advertising still can earn a lot of profit,
B. The PPA will substitute the original click advertising model.
C. All operators start to satisfy the advertisers by using PPA.
D. The entrepreneurs are pleasantly surprised by the temporary solution.
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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