结石为() A.强回声 B.等回声 C.低回声 D.较低回声 E.无回声 发布时间:2019-02-11 14:32 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 结石为()A.强回声B.等回声C.低回声D.较低回声E.无回声
题型:单项选择题 B型题 Fruit _______ several kinds of vitamins, ________ vitamin C.A. contains; included B. forms; includingC. forms; containing D. contains; including 查看答案