抛物线y=x2+1是由抛物线y=x2+3怎样得到的（ ） A．向上平移2个单位 发布时间：2017-05-11 13:39 │ 来源：www.tikuol.com 题型：选择题 问题： 抛物线y=x2+1是由抛物线y=x2+3怎样得到的（ ）A．向上平移2个单位B．向下平移2个单位C．向上平移3个单位D．向下平移3个单位
题型：选择题 Yesterday a school boy is daydreaming in class. Not knowing that he was doing, he put a pen cap into his mouth. A few minuteslate, he was terrified to find that he had swallowed it! The teacher was shocking when the boy stood up and said, "I've just swallowed a pen cap." He was quickly sent the nearest hospital. There a doctorexamined him and said the best treatment was to take some medicines so that the pen cap could pass natural. Three hours later the boy successfully made it."She is really lucky," said the doctor. "It's not rare that small children put things into their mouths for a fun. It's very danger."1. _______2. _______3. _______4. _______5. _______6. _______7. _______8. _______9. _______10._______ 查看答案
题型：选择题 与建设工程组织管理的其他模式相比，EPC模式具备的基本特征包括( )。A．业主承担大部分风险B．承包商承担大部分风险C．业主或业主代表管理工程实施D．出于自愿E．EPC合同更接近于固定总价格 查看答案