产妇灌肠时的量为()。
A.100~200ml
B.200~300ml
C.300~400ml
D.400~500ml
E.500~1000ml
参考答案:E
When she woke up, she realized that the things she had dreamt about could not have happened.
A.possibly
B.likely
C.certainly
D.usually
关于吸烟的危害不正确的是( )
A.烟雾会抑制气管和支气管内表面的黏膜上纤毛运动,使痰液不能及时排出,降低了呼吸道的净化作用
B.吸烟者易患慢性支气管炎、肺癌等疾病
C.青少年吸烟,呼吸道黏膜易受损伤
D.烟雾有利于肺活量的增加