厕浴间和有防水要求的楼板四周除门洞外,应作混凝土翻边,其高度不应小于()mm
A.100
B.150
C.120
D.140
参考答案:C
----- _______________________ . .
----- Thank you, I certainly will
A.Happy birthday to you
B.Please remember me to your mum.
C.Let me help you with your math
D.Don’t forget to post the letter.
流感的最佳预防措施是()
A.隔离患者
B.隔离密切接触者
C.开窗通风
D.搞好"三管一灭"
E.注射疫苗