题目内容:
Headings should be in parallel form, which means that you need to make them consistent within the same level.
A.正确
B.错误
参考答案:【答案仅供学习,请勿对照自行用药等】
Headings should be in parallel form, which means that you need to make them consistent within the same level.
A.正确
B.错误