“___ times has he visited the Great Wall?”“Twice.” A How many B How often

问题描述:

“___ times has he visited the Great Wall?”“Twice.” A How many B How often
选哪一个,请说明原因

A,how many是多少.而how often是问多久干一次什么,
如果选B,就得是How often does he visit the Great Wall?