有腹痛、腹泻、黏液便及腹部压痛是:()
A.细菌性痢疾
B.阿米巴痢疾
C.两者均有
D.两者均无
参考答案:C
The boy looks pale and thin. He _____ ill.
A.can be
B.has to be
C.must be
D.should be
耳廓外伤后伴绿脓杆菌感染,最易形成()
A.小耳
B.菜花耳
C.招风耳
D.外耳道闭锁
E.上述都不是