单选题:Who was the first president to have a dog in the White House 题目分类:英语 题目类型:单选题 查看权限:VIP 题目内容: Who was the first president to have a dog in the White House? A. Bill Clinton B. John Kennedy C. Dwight Eisenhower D. George Washington 参考答案: 答案解析:
A. comprehension B. obligationC. occasionD. nutrition A. comprehension B. obligationC. occasionD. nutrition 分类:英语 题型:单选题 查看答案
常用的减少事故损失的安全技术措施有隔离、个体防护、设置薄弱环节、避难与( )等。 常用的减少事故损失的安全技术措施有隔离、个体防护、设置薄弱环节、避难与( )等。A.消除危险源 B.救援 C.故障一安全设计 D.限制能量 分类:英语 题型:单选题 查看答案