They held a sports meeting _____ the morning of April 30. [ ]
A. in
B. on
C. at
D. by
答案:B
此时应考虑的诊断是
A.右动眼神经麻痹
B.右展神经麻痹
C.重症肌无力
D.右面神经麻痹
E.进行性眼外肌麻痹
窦道()
A.坏死累及有腔脏器的全层,并穿透浆膜
B.皮肤、黏膜的浅层缺损
C.皮肤、黏膜的深层缺损
D.有腔脏器的化脓、坏死连通于体外
E.深部脓肿向体表穿破在组织内,形成盲端管道