一质量为m的物体放在光滑水平面上，今以恒力F沿水平方向推该物体，在相同的时间间隔内，下列说法正确的是(    )

读课文《体育课》中句子，回答

可怜的小家伙，他使出了全身的力气，脸都憋紫了，豆大的汗珠从他额头上滚落下来。

仔细读读这句话，你读懂了什么？

下列命题是假命题的是(  )

    Mrs. Black has three daughters. Sue is the ____ (young) of the three. She is ____(outgoing) than her two sisters. She always tells some funny jokes ____ (make) people laugh. At school, her teacher thinks that Sue is the ____ (hard-working) student and that she does thing the ____ (carefully).

    Sue has a dream she want ____ (be) a reporter. To achieve (实现) her dream, Sue makes a plan. First she decides ____ (join) the writing Club to practice writing. Second, she tries ____ (talk) with her penfriends in different languages. To meet more people and talk with them, Sue plans ____(work) in some public (公共的) places. I'm sure she will be one of the ____ (famous) reporters in the world. Good luck to her!

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③缩减生产经营规模，减少产品的数量      　④加大环境保护投入，实现科学发展