When the statement was made, the plane （）.
A. was in the course of landing
B. had already landed
C. had just taken off
D. was in the middle of its flight
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Do you think it would be better to send out sale（）directly to prospective buyers
A. book
B. literature
C. manual
D. price
Which of the statements about the teens is NOT true
A. They are ill-bred students in school.
B. Some of them take "real drugs".
C. Teens needs attention.
D. A few casually display scars on their arms.
根据《部颁药品标准》的处方，将原料药物加工制成具有一定规格的制品，称为
A. 方剂
B. 调剂
C. 中药
D. 汤剂
E. 制剂
关于气雾剂的叙述中，正确的为
A. 抛射剂的沸点对成品特性无显著影响
B. 抛射剂的蒸气压对成品特性无显著影响
C. F12、F11各单用与一定比例混合使用性能无差别
D. 抛射剂用量大，喷出的雾滴细小
E. 抛射剂用量少，喷出的雾滴细小
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