【简答题】When US student Olivia Priedeman, 17, woke up one morning, she thought she had had a dream about plans with a friend. But it wasn’t a dream. Her phone showed that during the night, Priedeman ha...
【单选题】When a drug is one that should be used only under a doctor's supervision, the law requires that it be sold only by prescription (处方). Special tests or instructions may be needed. Drugs for serious dis...
A.
Because they are not safe.
B.
Because they need further special tests.
C.
Because they are meant to cure serious diseases.
D.
Because the prescription can ensure the safe use of the drugs.