A:以舰载机为参照物,航母是运动的
B:舰载机受阻拦索作用,其动能逐渐变小
C:由于惯性,舰载机虽受阻拦索作用,但仍要滑行一段距离
D:舰载机速度减小,是因为阻拦索对飞机的作用力大于飞机对阻拦索的作用力
You only need to pay for breakfast and dinner.
日本海岸线曲折,多优良港湾,因此日本在加强对外经济联系时,大力发展的运输方式是( )
have, at, like, usually, watch, homework, after, play, come
I have a friend. His name is Li Daming. He often gets up ____ six o'clock in the morning. He ____ breakfast at seven. He goes to school five days a week. After school,he ____ plays games for half an hour. Look! What is he doing?He is ____ basketball. In the evening he does his ____ and he likes listening to music. He often ____TV for half an hour____ he finishes his homework. He goes to bed at ten o'clock. Do you ____ him?
阅读资料,回答问题.材料一:我国的所有自然灾害中,气象灾害中71%,地震灾害占8%,海洋灾害占7%,农林牧业生物灾害占6%,其他灾害占8%.材料二:1880—2012年全球平均温度升高了0.85℃,上升2℃产生的变化有极端热事件增加,全球冰川不断减少,海平面继续上升.超过2℃造成的危害有:人口贫困化,人口健康受损,物种灭绝的风险增加,洪灾风暴潮等危险增多,作物减产,可再生地表水和地下水减少.材料三:途经8个省的南水北调工程解决北京、天津、河北、河南四省取1亿多人用水危机,沿岸1200万亩耕地可自留灌溉,汉江防洪提高到百年一遇.材料四:中国一年因雾霾造成的经济损失6720亿元,相当于GDP的1.2%.例如雾霾天气使番茄和辣椒晚成熟至少30天,使太阳能发电比晴天发电降低了约80%.