最容易发生面瘫的涎腺恶性肿瘤是
A．腮腺鳞状细胞癌
B．腺样囊腺癌
C．黏液表皮样癌
D．混合瘤恶变
E．腺淋巴瘤恶变
参考答案：B
|-6|=______．
__________ to sun, rain and wind for a long time, the stone split.
A．Being exposed
B．Having exposed
C．Exposed
D．To expose
