A-A+
The volunteers in the trial ate potatoes______
问题详情
The volunteers in the trial ate potatoes______。
A. for fun
B. against gut infections
C. to satisfy their hunger
D. to produce vaccines请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
[答案] B [句意剖析] 见第一段“Researchers in Texas hope that people who eat the potatoes will be protected against common gut infections．”研究者们希望土豆能保护食用者免受普通肠道感染的侵害。
