题干

下列方程中变形正确的是(  )
①4x+8=0变形为x+2=0;
②x+6=5-2x变形为3x=-1;
4
x
5
=3变形为4x=15;
④4x=2变形为x=2

A:①④

B:①②③

C:③④

D:①②④

上一题 下一题 0.0难度 选择题 更新时间:2019-01-15 05:46:18

答案(点此获取答案解析)

B

同类题1

“确保贫困人口到2020年如期脱贫!”******已向全党全社会发出了扶贫攻坚决战决胜的总号召。

材料一:《S省文化惠民扶贫专项方案》于2015年10月起正式实施。依据精准扶贫的要求和S省文化发展实际,《方案》中明确,到2017年,完成贫困地区文化基础设施建设任务60%以上,公共文化服务供给能力明显增强,各类文体活动广泛开展,人民群众精神文化生活面貌极大改善,文化惠民扶贫集中攻坚取得关键突破。《方案》同时明确将加强农村传统建筑的保护和维修,指导其发展特色文化旅游、现代观光农业等产业,打造藏羌彝地方特色文化品牌,以此带动贫困地区转变经济发展方式。

材料二:某县作为C市14个国家级重点贫困县之一,确立了“2017年贫困村销号、贫困人口越线”的目标。为确保扶贫攻坚任务的完成,该县充分考虑各乡镇实际情况,量身定做脱贫方案。

当地TJ集团是中国医药工业10强,资产200亿元。以TJ集团为依托,该县成立了大歇中药材专业合作社 ,积极推行“公司+合作社+农户”的模式,把种植药材作为了脱贫的主打产业。目前他们已发展中药材1万余亩,形成了产、加、销一条龙发展的路子。该县有10个贫困村、1200户贫困户,其中70%的村民都种中药材,有的贫困户还在中药材加工厂务工。2015年这1200个贫困户户均种植中药材2亩,户均增收达到8000元。

同类题3

任务型阅读

    There is no doubt that the first day of school can be crazy for most of students. New kids wander (徘) around in circles, waiting for the opening of the school door. The school nurse needs your medical records. ____ The freshmen are running in all directions, looking for their new classrooms.

    How can you overcome the first-day chaos? If you will go to a new school, try to arrange a visit before classes begin. Explore any areas, such as the playground, library, or school labs.____

    Get one and read it before your school, starts-then keep it in your school bag until you're familiar with your new surroundings. Your first day is also the time to bring in school supplies and books.

    You should arrange your schoolbag well the night before you go to school so that you won't look for what you need at the last minute.

    Did you try on eight different coats before deciding on what to wear?____ The best choice is to wear what makes you feel good, whether it is a new coat or an old sweater. If you plan to wear a pair of shoes, make sure they fit you well.

    ____ Some start with a gathering, while others may jump right into the first-period class. You'll meet your new teachers, and they will probably give you an overview of the courses, class rules, what the semester will be like, what supplies you'll need, and expectations of your performance and behavior. Some teachers will jump into their first lesson, while others may have some activities.____

A. Some schools even offer maps.

B. But you forget to bring it with you.

C. It all depends on the class and teacher.

D. Don't depend on your parents any more.

E. Each school has different opening-days.

F. You can also try to ask the teachers for help.

G. Lots of students have difficulty deciding on what to wear on the first day of school.