题型:问答题 简答题 给下列单词分类,把答案序号写在下面的横线上。1. shoes4. watermelon7. banana10. juice13. skirt 2. Wednesday5. monkey8. dog11. tea14. Saturday 3. tiger 6. apple 9. Sunday12. coat 15. milk A. 动物: ______________ ______________ ______________B. 水果: ______________ ______________ ______________C. 饮料: ______________ ______________ ______________D. 衣物: ______________ ______________ ______________E. 星期: ______________ ______________ ______________ 查看答案
题型:问答题 简答题 The dog had such ________ to its master that it would not leave him, even when he was dead.[ ]A.invitation B.attentionC.protection D.devotion 查看答案
题型:问答题 简答题 38岁初孕妇,妊35周,头先露,因1周来下肢水肿,两天来头晕头痛、视物不清,检查BP160/l10mmHg,尿蛋白(++)而住院,未孕前有过血压140/90mmHg。最可能的诊断是()A.妊娠合并慢性高血压 B.子痫合并HELLP综合征 C.慢性高血压合并子痫前期 D.子痫前期合并高血压脑病 E.慢性高血压合并HELLP综合征 查看答案
题型:问答题 简答题 已知a,b是实数,函数f(x)=x3+ax,g(x)=x2+bx,f′(x)和g′(x)分别是f(x)和g(x)的导函数,若f′(x)·g′(x)≥0在区间I上恒成立,则称f(x)和g(x)在区间上单调性一致,(1)设a>0,若f(x)和g(x)在区间[-1,+∞)上单调性一致,求b的取值范围;(2)设a<0且b≠0,若f(x)和g(x)在以a,b为端点的区间上单调性一致,求|a-b|的最大值. 查看答案