Don't worry. We still have _____ time.[ ]
A. few
B. a few
C. little
D. a little
答案:D
血红蛋白尿见于()
A.缺铁性贫血
B.肾结核
C.蚕豆病
D.血友病
E.膀胱炎
造成井下低压电网漏电的原因包括()
A.因电缆或电气设备本身引起的漏电
B.因管理不当而引起的漏电
C.因操作不当引起漏电
D.因施工安装不当引起的漏电