题干

男职工人数占总人数
5
7
,则男职工人数和女职工人数的比是7:5.
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    As young students gain independence, they can take on science and engineering projects that require more special knowledge. The followings are the best educational toys for middle school students.

    Terraforming Mars

    The goal of the Terraforming Mars board game is to make the Red Planet fit of human habitation. Players, representing a person sent to the planet to warm it create oceans and build up the oxygen levels, compete for victory points awarded for building cities or introducing animals. The goals are based on real science—for example, players must found greenhouse gas production to warm the planet.

    Recommended ages: 12 and up

    Price: $69.99

    DIY Cell Phone Equipment

    Are you kids begging you for the latest for the latest iPhone? Tell them to build up their own. DIY Cell Phone Equipment will teach young teens about the technology behind their beloved mobile equipment. Kids can turn this Phone equipment into a real working phone.

    Recommended ages: 12 and up

    Price: $58.99

    OWI: 14-in-1 Solar Robot

    Kids can experience 14 different robotic models with this solar robot. The robot can move on land and water, and there are two skill levels, which means more experienced builders will still be challenged. The robot is powered by the sun, so you don't have to buy batteries(电池).

    Recommended ages: 12 to 15

    Price: $24.99

    Compound Microscope

    Compound Microscope is great for home or classroom explorations. It helps kids get an eyeful of solid samples, such as insects, coins and plants. The microscope also comes with a microtome, dyes, test tubes, a handbook and cleaning tools.

    Recommended ages: 12 and up

    Price: $89.95

同类题5

随着亚投行的建立以及“一带一路”构想的落实,亚洲打造“命运共同体”已找到更为清晰的实现路径。阅读材料,回答问题。

材料一

图甲                                        图乙

注:2014年世行和亚开行向亚太地区提供的贷款分别是168.47亿美元和85.42美元。中国倡议筹建的亚投行,将向亚太地区国家基础设施建设提供资金支持。

材料二  亚太地区是全球经济最活跃的地区之一。亚投行的建立,旨在合作共赢,共谋发展。对一些发展中国家而言,基础设施建设是激发自身经济潜力的重要手段,改善基础设施将带动经济持续较快发展;对一些发达国家来说,将扩大对投资品的需求,带动其经济提速;对本地区整体而言,互联互通将增强自我发展能力,为经济发展注入持久动力,并带动世界经济复苏;对中国而言,“走出去”是构建开放型经济新体制的重要举措,扩大对外投资成为国家下一阶段的战略布局,而且中国在公路、桥梁、隧道、铁路等方面的工程建造能力在世界上已是首屈一指,中国相关产业期望通过这一平台更快地走向国际。

材料三  近年来随着我国经济社会的发展,我国总体生育率降到更替水平以下,目前为1.5~1.6,人口总量虽然保持持续增长,但惯性趋弱;人口老龄化速度加快,2013年60岁及以上老年人数量已超过2个亿,本世纪30年代中期占总人口的比例将从目前的1/7提高到1/4;独生子女家庭1.5亿多户,独居老人的比例提高,家庭的传统功能有所弱化;城乡居民生育意愿发生了很大变化,随着经济社会的发展和群众生活水平的提高,少生优生、优育优教的生育观念正在形成。这些因素都从客观上推动了我国计划生育的调整。

2015年10月29日闭幕的十八届五中全会公报确定,坚持计划生育的基本国策,完善人口发展战略,全面实施一对夫妇可生育两个孩子政策,积极开展应对人口老龄化行动。