一辆巡逻车最快能在10 s内由静止匀加速到最大速度50 m/s，并能保持这个速度匀速行驶，问该巡逻车在平直的高速公路上由静止追上前方2000 m处正以v=35 m/
阅读下面的文言文，完成4～7题。 杨廷和，字介夫，新都人。父春，湖广提学佥事。廷和年十二举于乡。成化十四年，年十九，先其父成进士。改庶吉
Animals grow up in different ways. They have lots of lessons to learn. Some animals are born helpless but their mothers protect them. A newborn kangaroo is the size of a bee. She stays in her mother's
某公司有2位股东，20名工人. 从2006年至2008年，公司每年股东的总利润和每年工人的工资总额如图12所示． 图12 （1）填写下表： 年 份2006年
My friend, Dick, has a large police dog. It’s name is Jack. Every Saturday afternoon Dick takes Jack for a long walk in the park. Jack likes these long walks very much. One Saturday afternoon,
p{font-size:10.5pt;line-height:150%;margin:0;padding:0;}td{font-size:10.5pt;}（09年深圳市一调）（选修3-3）（5分）如图表示一定质量的某气体在不同温度下的两条等温线
Allow others the space to voice their opinions, ______ they are different from yours. A. as though B. as if C. unless D. even thoug
My best friend Neil is _________ honest boy. You can believe him. A. an B. a C. the
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