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
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.also known as folate
B.Vitamin B9
C.can be found in many fruits， vegetables and beans
正确答案：also known as folate