It's bad for their study ______ . A near or far B more or less C up and down 选哪个

It's bad for their study ______ . A near or far B more or less C up and down 选哪个
It's bad for their study ______ . A near or far B more or less C up and down 选哪个

It's bad for their study ______ . A near or far B more or less C up and down 选哪个
B或多或少

A.in and out B.near or far C.more or lessD.up and down 问题补充'更多' 的意思, many 修饰可数名词. 所以要选many more the more..,

b

选B，或多或少，都会对他们的学习产生坏的影响