【简答题】Many people catch a cold in the spring time and / or fall. It makes us wonder .if scientists can send a man to the moon, why they can't find a cure for the common cold. The answer is easy. There are ...
【单选题】听力原文: Many people catch a cold in the spring time or fall. It makes us wonder: if scientists can send a man to the moon, [33] why can't they find a cure for the common cold? The answer is easy. There'...
A.
They haven't devoted as much energy to medicine as to space travel.
B.
There are too many kinds of cold viruses for them to identify.
C.
It is not economical to find a cure for each type of cold.
D.
They believe people can recover without treatment.
【单选题】听力原文: Many people catch a cold in the springtime or fall. It makes us wonder... if scientists can send a man to the moon, why can't they find a cure for the common cold. The answer is easy. There see ...
【简答题】Many people catch a cold in the springtime or fall. It makes us wonder… if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There are actually...