Passage ThreeQuestions 22 to 25 are based on the passage you have just heard.
All airlines have enforced a total ban on electronic devices during flights.
B. Portable computers are confirmed as the greatest cause of aircraft crashes.
C. It is difficult to predict how electromagnetic fields might affect an aircraft’s computers.
D. Mobile phones are as dangerous as portable computers on an airplane.
不属于《中华人民共和国药品管理法》规定的特殊药品是（）
A. 麻醉药品
B. 精神药品
C. 毒性药品
D. 放射性药品
E. 戒毒药品
Questions 13 to 15 are based on the conversation you have just heard.
A gift should be perfect.
B. A gift should be impressive.
C. A gift should be decorative.
D. A gift should be practical.
通过使用new和delete两个运算符进行的分配为 【9】 存储分配。
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