题目

As part of the exam，the headmaster________a situation to test the students' ability of making decisions. A．set up                                          B．set out C．set down                                     D．set about 答案：A贴有下列危险品标志的药品起火时，不能用水灭火的是A.剧毒品B.遇湿易燃物品C.腐蚀品D.有害品（远离食品）