在测量学科中，距离测量的常用方法有（）测距。
A.视距法
B.钢尺量距
C.水准仪法
D.电磁波测距
参考答案：A, B, D
—Could you give us an account about the big fire?
—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.
A．where
B．on which
C．that
D．when
关于代谢性酸中毒对中枢神经系统影响的叙述错误的是（）
A.意识障碍
B.乏力
C.知觉迟钝
D.呼吸兴奋
E.嗜睡或昏迷
