心肺复苏法的三项基本措施包括通畅气道、人工呼吸、（）。
参考答案：胸外心脏按压
Last Sunday, Uncle Wang _______ us _______ his home town. [ ]
A. show, around
B. show, visit
C. showed, to visit
D. showed, around
流过电流的路径称电路.（）
