当x=______时，代数式2x-13的值等于3． 发布时间：2017-06-07 22:28 │ 来源：www.tikuol.com 题型：填空题 问题： 当x=______ 时，代数式2x-13的值等于3．
题型：填空题 完形填空。Tom and Sam are twin brothers. They like playing soccer. They live 1 a big house 2 a beautiful garden. The house is 3 the sea. They often go to the sea and swim 4 it. There are four 5 in 6 family. They are parents, Tom and Sam.. Their father is a worker, 7 their mother is a teacher. 8 is Sunday today. Tom and Sam don't go to school. Their parents are not at work. They go to a park by car. Now they are in the park. The two 9 are swimming in the river and their parents are sitting 10 a tree. Look, they are talking and laughing. A bird is flying in the sky. ( )1. A. in ( )2. A. in ( )3. A. near ( )4. A. in ( )5. A. boys ( )6. A. them ( )7. A. or ( )8. A. It ( )9. A. girls ( )10.A. in B. on B. on B. in B. near B. girls B. theirs B. all B. This B. child B. on C. at C. with C. at C. to C. workers C. their C. and C. That C. people C. under D. to D. to D. on D. on D. people D. they D. so D. It's D. childrenD. at 查看答案
题型：填空题 已知圆M：x2+y2+6x-43y+17=0，过点A（-1，0）作△ABC，使其满足条件：直线AB经过圆心M，∠BAC=30°，且B、C两点均在圆M上，则直线AC的方程为______． 查看答案
题型：填空题 某医院儿科收治了一名高热患儿，经医生初诊"发热待查，脑炎可能"。急诊值班护士凭多年经验，对患儿仔细观察，发现精神越来越差，末梢循环不良，但患儿颈部不强直。于是，护士又详细询问家长，怀疑是中毒性菌痢。经肛门指诊大便化验，证实为菌痢，值班护士便及时报告医生，经医护密切配合抢救，患儿得救。该护士的行为符合下列哪条道德要求（）A.举止端庄，言语文明 B.作风严谨，准确无误 C.平等待人，尊重病人 D.敬业负责，精益求精 E.关心病人，体贴入微 查看答案