2015年12月20日，中韩自贸协定正式生效，双方超九成产品有望进入零关税。由于中韩双方出口产品相似，而我国的产品总体仍处于农业链较低端，大规模进口会对国内同类产品产生冲击。这就要求我国企业（    ）

①利用市场倒逼机制，推动生产转型

②充分运用世贸规则，保护合法权益

③培育本国品牌，打造低价竞争新优势

④加快创新，提高产品竞争力

图中小虚线圈为极圈，大虚线圈为回归线；弧线ACB为晨昏线，且AC段为昏线；C点为晨昏线与极圈的切点，也是晨昏线与120°经线的交点．完成下题．

    You may have heard of the famous saying，"East or West，home is the best．"What does the word"home"mean to you？How do you say the word in French，in Chinese，in your language？Although people usually know what the word means，it sometimes has no exact translation．It's not surprising，because the idea of home is different from country to country，and from person to person．A home is more than a roof and four walls．It's the cooking，eating，talking，playing and sleeping that go on inside．And at home you usually feel safe and relaxed．

    Homes look different in different countries．They also have different things inside．For example，in cold northern Europe，there's a fire in the living room or kitchen and all the chairs face it．In the south，where the sun shines a lot and it's more important to keep the heat out，there are small windows and cool stone floors．

    We asked some people about their homes．

How often do people move house in your country？

    "In my country many people don't stay in one place for a very long time．They often move every ten years or so．"

—Chery，Boston，USA

What are features （特征） of homes in your country？

    "In Britain，even in town，there's always a garden．We have separate bedrooms and living rooms．But we don't often have balconies （阳台）．The weather isn't warm enough!"

—Pat，Exeter，England