蒸汽供给异常后燃料油泵振动，说明燃料油温度过低造成粘度上升，应停止燃料油泵。（）
参考答案：对
The young man, ________ several attempts to beat the world record in high jumping, decided to
have another try. [ ]
A. to make
B. making
C. made
D. having made
县级以上公安机关在接到民警现场处置人员伤亡的报告后，对（）等严重犯罪的现场或者已经造成人群聚集的现场，公安机关负责人应当赶赴现场进行指挥。
A.故意伤害
B.杀人
C.放火
D.爆炸
