反患者应尽早矫治,治疗不及时可形成Ⅲ类骨性反,其矫治年龄应在()
A.3~5岁
B.6~7岁
C.8~9岁
D.11~13岁
E.18岁以后
参考答案:A
John is the only one of the students in the class who never _____ a mistake even when it is pointed out to him.
A.admits making
B.admitted to make
C.admitted making
D.admitted having made
“MAN”原则中的“A”代表()。
A.金钱
B.决定权
C.需求
D.客户