题型:单项选择题 A 15-year-old boy is admitted to the health care facility after acting out his aggressions inappropriately at school. Predisposing factors to the expression of aggression include which of the followingA. Violence on television.B. Passive parents.C. An internal locus of control.D. A single-parent family. 查看答案
题型:多项选择题 下列关于配置混凝土时用砂的说法正确的有()。A.配置混凝土时优先选用Ⅱ区砂B.选用Ⅰ区砂的时候,应适当增加砂用量C.选用Ⅲ区砂应适当增加砂用量D.级配良好的砂,其大小颗粒含量适当E.级配良好的砂填充空隙用的水泥砂浆较少 查看答案