发生火灾时,报火警的电话号码是()。
A.110
B.119
C.120
D.121
参考答案:B
My sister often needs help with her study, ?
A.need she
B.needn’t she
C.doesn’t she
D.does she
肺部CT的检查技术描述错误的是()
A.平静呼吸的吸气未屏气扫描
B.范围为肺尖至肺底
C.层厚、间隙均为10mm
D.多需增强扫描
E.仰卧位