MPA最常累及的神经是()
A.桡神经
B.骨髓
C.尺神经
D.腓神经
E.脑神经
参考答案:A, C, D
–Look at that red bike, it _____ belong to you. I have seen you ride it.
--But it ____ be mine. Mine is broken. I am having it repaired.
A.may, can’t
B.must, mustn’t
C.may, mustn’t
D.must, can’t
以下不属于去除不良习惯的矫治器的是()
A.腭刺
B.腭屏
C.腭杆
D.唇挡
E.颊屏