易发生面瘫的肿瘤主要是
A.混合瘤B.黏液表皮样癌C.腺泡细胞癌D.腺样囊性癌E.腺淋巴瘤
参考答案:D
Why do you laughing all the time?
A.keep on
B.keep up with
C.go on to
D.go on with