甲 乙
丙 丁
如图所示,关于“探究电磁感应现象”的实验,下列说法正确的是( )
①由国家权力机关产生其他国家机关,依法行使各自的职权
②实行民主集中制的组织和活动原则
③国家的一切权力属于人民
④维护了国家统一和民族团结
①朋友圈内卖商品容易引起纠纷,应该坚决取缔微信
②应该尽快完善互联网监管体系,加强对微商的管理
③频繁刷屏给他人带来诸多不便,应该尊重他人
④熟人间售卖商品考验彼此的诚信度,应该珍惜自身诚信品质
长征
红军不怕远征难,万水千山只等闲。五岭逶迤腾细浪,乌蒙磅礴走泥丸。
金沙水拍云崖暖,大渡桥横铁索寒。更喜岷山千里雪,三军过后尽开颜。
More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment. Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost!
Get on a bicycle and ride around your neighborhood. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit (受益) from the enjoyable exercise without polluting the environment. You don't even have to ride all the way.
Folding bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by getting on airline websites. Not all airlines are bicycle-friendly to travelers.
Health Benefits of Bicycling:
It helps to prevent heart diseases.
Bicycling helps to control your weight.
A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year.
Bicycling can improve your mood (心情).
Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident.
Bicycling is healthier than driving.