注射白喉抗毒素的同时,又接种白喉类毒素,关于这种免疫的说法错误的有()
A.人工自动
B.人工被动
C.自然自动
D.自然被动
E.人工自动被动免疫
参考答案:A, B, C, D
不属于种植义齿上部结构的是 ()
A.基桩
B.金属支架
C.人工牙
D.基托
E.固定螺丝
—Hi, Tina ,we’re going to Sam’s house to celebrate his graduation. Would you like to _____?
—Great! Let’s go.[ ]
A. come up
B. come on
C. come out
D. come along