MRI示脊髓增粗，蛛网膜下隙对称性变窄，病变定位诊断为（）
A.髓内
B.硬膜外
C.髓外硬模内
D.跨硬模
E.椎管外
参考答案：A
某同学站在竖直放置的平面镜前2m处，镜中的像与他相距_________m。当该同学走 * * 面镜时，镜中像的大小将_____________（填“变大”、“变小”或“不变”）。
Everyone has the right to advise you to go on a diet, _____? [ ]
A. hasn't he
B. don't they
C. hasn't she
D. isn't he
