单项选择题

What is mentioned as a disadvantage of food challenge

A. People are unaware of what they are eating.
B. People may be given frightening food to eat.
C. The food may cause life-threatening allergy.
D. It takes much time to get the food prepared.

<上一题目录下一题>

热门试题

单项选择题

According to Dr. Shank, the Wallace Line ______.

A. hasn’t been hilly accounted for
B. doesn’t really exist
C. can justify the marine diversity
D. is derived from undersea

填空题

mostly