头皮,面部,背部常见圆形肿物,与皮肤粘连,易感染,哪些病可能性最大()
A.脂肪瘤
B.神经纤维瘤
C.皮样囊肿
D.皮脂腺囊肿
E.表皮样囊肿
参考答案:D
“Where’s my book? I can’t find it”.“It _______ on your desk.”
A.may be
B.maybe
C.maybe is
D.may is
哌替啶的用途有()
A.对各种锐痛
B.催吐
C.人工冬眠
D.心源性哮喘
E.缩瞳