题型:完形填空 完形填空 I have(有) three friends. 1 are Kangkang, Maria and Fred. Kangkang is thirteen. Maria and Fred 2 fourteen. Kangkang is from China. Maria and Fred are from the U.S.A. Maria is 3 Chinanow. 4 in Class 4, Grade 7. She and Kangkang are in the same class. 5 telephone number is 8267-6858. I like(喜欢) my friends.( )1. A. He ( )2. A. am( )3. A. in( )4. A. He( )5. A. SheB. They B. isB. fromB. He'sB. She'sC. TheseC. areC. toC. She'sC. HeD. Those D. be D. / D. She D. Her 查看答案
题型:解答题 已知二次函数y=ax2+2x+c,函数y与自变量x的部分对应值如下表:x……-2-1012……y……-50343……小题1:求这个二次函数的关系式;小题2:请判断函数有最大值还是最小值,并写出此时x的值与y的值;小题3:若y≥0,则x的取值范围是_______.小题4:若A(n,y1)、B(n+1,y2)两点均在该函数的图象上,试比较y1与y2大小. 查看答案
题型:选择题 “大树底下好乘凉”,炎热的夏天,人们总是喜欢聚集在大树下乘凉,其主要原因是( )A.大树能吸收太阳的辐射热B.大树下宽敞通风C.大树能遮住阳光,大树下通风较好,树叶里的水分蒸发要吸热,使周围的空气温度降低D.大树易于将热量传到地上 查看答案
题型:单项选择题 案例分析题 女,33岁,人流术后5天出现高热, * * 大量脓性分泌物。查体:体温39℃,下腹部压痛反跳痛明显,宫颈举痛,宫体压痛明显,双附件增厚感,压痛。下一步治疗措施为()A.剖腹探查B.镇痛治疗C.物理治疗D.应用抗生素E.应用激素治疗 查看答案