“让我们荡起双桨，小船儿推开波浪”中使船儿前进的力是[ ]
A．人对船的作用力
B．人对桨的作用力
C．桨对水的作用力
D．水对桨的作用力
答案：D
By law, the driver was not ________for the accident, so he was not ________ by the police. [ ]
A. to be blamed; blamed
B. blamed; to be blamed
C. to blame; to blame
D. to blame; blamed
换料水（贮存）箱 refueling water (storage) tank
