题型:选择题 Does Babara go to work _______ bus or _______ foot? [ ]A. to; by B. with; on C. by; on D. on; on 查看答案
题型:单项选择题 关于Chiari畸形的描述,错误的是()A.后脑先天发育异常 B.小脑扁桃体过长、变形,经枕骨大孔伸入椎管内 C.延髓及第四脑室亦向下延伸 D.常伴发脑积水与脊柱裂 E.ChiariI型常伴有脊髓脊膜膨出 查看答案