在做一道加法算式题时,孙蕾粗心大意竟把个位上的5看作9,把十位上的8看作3,结果“和”得123。正确答案是( )
A.169
B.168
C.166
D.165
参考答案:A
Some parents are just too protective. They want to _____ their kids from every kind of danger, real or imagined. [ ]
A. spot
B. dismiss
C. shelter
D. distinguish
可摘局部义齿颊侧有单臂间隙卡环,基牙的舌侧一定要做高基托的作用是
A.对抗作用和防止食物嵌塞
B.固位作用和防止食物嵌塞
C.对抗作用和固位作用
D.对抗作用和支持作用
E.对抗作用和稳定作用