设X服从λ＝2的泊松分布，年学则P（X≤1)约为（)。A．0.135B．0.406C．0.271D．以上都不对

习通The Hippocratic Oath is the foundation of medical ethics.A．RightB．WrongC．Not mentioned

尔雅Magic once could cure human diseases.A．RightB．WrongC．Not mentioned

私法It has been argued that an infant under three who is cared for outside the home may suffer

英语The argument against Bowlby's conclusion shows that ______.A．there is on negative delayed

表达The phrase "day care" in Line 8, Para. 1 probably means ______.A．boarding schoolB．primary

章节This passage is about ______.A．infants' educationB．negative effect of infant schoolC．child

测试Dorothea Dix left home at an early age－of her own free will－to live with her grand－mother.

答案How did Dorothea Dix first become aware of the mistreatment of insane people？A．Her grandmo

年学What is the meaning of "served as" in the last paragraph？A．waited on.B．used.C．succeeded as

习通表明钢材在超过屈服点工作时可靠性的指标是（)。A．比强度B．屈强比C．屈服强度D．条件屈服强度

尔雅钢的含碳量低于（)。A．2.06%B．5.0%C．0.6%D．0.25%

私法碳素结构钢的牌号所包含的四部分的正确顺序是（)。A．屈服点字母—屈服点数字—质量等级—脱氧方法B．屈

英语含水率对木材强度影响最大的是（)。A．顺纹抗压B．横纹抗压C．顺纹抗拉D．顺纹抗剪

某混凝土的配合比为:水泥:砂:石子:水=1:1.35:3.0:0.44，表达其砂率为（)。A．32%B．31%C．30%D．35%

现浇钢筋混凝土地下连续墙的主要特点是（)。A．施工速度快、技术要求高B．墙面垂直度及平整度好C．深基

台模支设工序是（)。A．组装与就位B．组装与就位、脱模、飞出C．组装与就位、飞出、脱模D．飞出、组装与就位

装配式框架结构，当房屋平面宽度较小，构件较轻时，塔式起重机的布置方式是 （)。A．单侧布置B．双侧布

滑模施工的特点有（)。A．占用施工场地大B．高空作业少C．节约大量模板D．耗钢量少

抹灰施工的顺序有（)。A．外墙由上而下B．罩面时先墙面后顶棚C．先外墙后内墙D．先窗台后门窗角