无菌检查法根据供试品有无抑菌作用而采用()或()两种方式。
参考答案:薄膜过滤法;直接接种法
改错。
( ) 1. What are your father like?
A B C
( ) 2. Does they have a new teacher?
( ) 3. —Is he strict? —No, she isn't.
( ) 4. His music teacher is young or pretty.
( ) 5. Where do you from?
患者单侧鼻塞、有黏脓性血涕时应怀疑为()。
A.鼻息肉病
B.内翻性 * * 状瘤
C.坏死性出血性上颌窦炎
D.骨瘤
E.鼻-鼻旁窦恶性肿瘤