题目

0下列四组生物中，都属于真核生物的一组是： A．噬菌体和根霉 B．细菌和草履虫 C．蓝藻和酵母菌 D．衣藻和变形虫 答案：D 解析: 原核生物有：细菌、蓝藻、放线菌、支原体和衣原体；噬菌体是病毒；排除法得出答案D How do you ____ with your computers，MP4 players and mobile phones when they're broken? Most people just ____ them away. With the development of electric industry, e-waste pollution has become a serious_____ .It’s ____ to pay attention to e-waste. It can either be valuable or harmful, depending on ____ we dispose（处置）it. E-waste is a valuable urban mine（城市矿藏）. The value of the metals, like gold and silver in the waste ____ the world, is amazing, and the metals can be reused. But if people throw them away, the toxic chemicals（有毒化学物质）can get into the earth or air, affecting the environment and people’s ____ .Here is an example. Apple now recycles the used products in China when they are buying new ones.The company will test and repair the used ones and ___ them at lower prices. To help reduce ____, we can_____ take computers and phones to see if companies offer recycling programs.【1】A.getB.dealC.makeD.sell【2】A.keepB.throwC.getD.put【3】A.problemB.lookC.subjectD.question【4】A.unnecessaryB.unhappyC.importantD.impossible【5】A.whyB.whoC.howD.where【6】A.aroundB.atC.onD.of【7】A.moneyB.clothC.healthD.value【8】A.makeB.giveC.sendD.sell【9】A.e-wasteB.wasteC.paperD.metals【10】A.hardlyB.notC.neverD.also