发现触电者已失去知觉，应立即（）。
A、进行人工呼吸
B、送医院
C、请人抢救
D、报告领导
参考答案：A
He couldn't buy the dictionary because he had ______ money with him. [ ]
A. a few
B. few
C. a little
D. little
请说出校准与检定的区别？（说出三点即可）
