标题: 一道语法题求解, 我认为应该选A, 请问大家呢？ [打印本页] 作者: harvard2012 时间: 2011-6-25 10:52 标题: 一道语法题求解, 我认为应该选A, 请问大家呢？ Not a single one of the nursing interns knows how to administer a basic flu shot. A) knows how B) knkow enough C) can D) are able E) have enough training