题目内容
（请给出正确答案）
[主观题]
Vitamin B9 — also known as folate（叶酸）— can be found in many fruits, vegetables and beans. 该句中的插入语是
A、Vitamin B9
B、also known as folate
C、can be found in many fruits, vegetables and beans
提问人：网友lion_lgq
发布时间：2022-01-06
如搜索结果不匹配，请 
A. N-C
B. N-5
C. N-8
D. N-10
E. N-5，N-10或N-5和N-10
