痣样基底细胞癌综合征包括下列哪些表现()
A.多发性角化囊性瘤
B.皮肤基底细胞痣
C.分叉肋
D.颅骨异常
E.小脑镰钙化
参考答案:A, B, C, D, E
—_______?
—It's dark blue.[ ]
A. Is it your skirt
B. Whose skirt is it
C. What colour is her skirt
传播效果研究的课题领域?