Life is like a long race ________ we compete with others to go beyond ourselves.[ ]A. whyB. whatC. t

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• Last Sunday they reached Qingdao,____a conferencewas to be held. [ ]A. which B. thatC. whenD. where-
• A、B为定二次曲线ax2+bxy+cy2+ex+fy+g=0（a≠0）上的两个定点，过A、B任作一圆，设该圆与定二次曲线交于另外两点C、D，求证直线CD有定向。-九年级数学
• I'll give you my friend's home address______ I can be reached most evenings.[ ]A. whichB.
• 为了预防“非典”，学校对教室采用药熏消毒法进行消毒，已知药物燃烧时，室内每立方米空气中的含药量y（mg）与时间x（min）成正比例，药物燃烧完后，y与x成反比例（如图所示）。现测-八年级数学
• 已知y-1与x成正比例，当x=3时，y=10。求（1）写出y与x的关系式；（2）求自变量x取何值时，得y≤8。-八年级数学
• 两摞相同规格的饭碗整齐地叠放在桌面上，根据图中给出的数据信息，写出整齐叠放在桌面上饭碗的高度y（cm）与饭碗数x（个）之间的一次函数解析式为[]A．y=2x+2.5B．y=2x+1C．y=1.5-八年
• We're just trying to reach a point _______ both sides will sit down together and talk.[ ]A. whe
• I hope you will find this valley a beautiful place___you.may spend your weekend .[ ]A. that B. which
• I can still remember the sitting room___mymother and I used to sit in the evening.[ ]A. whatB. which
• 某种储蓄的月利率是0.8％，存入100元本金后，本息之和y元与所存月数x之间的函数关系式为（）。-九年级数学
• Mozart's birthplace and the house ________ he composed "The Magic Flute" are both mus
• 若反比例函数与一次函数y=mx-4的图象都经过点A（a，2）。（1）求一次函数y=mx-4的解析式；（2）画出直线y=mx-4，两个函数图像的另一个交点为B，根据图象直接写出当一次函数的值大于-八年级
• 制作一种产品，需先将材料加热达到60℃后，再进行操作．设该材料温度为y（℃），从加热开始计算的时间为x（分钟）。据了解，设该材料加热时，温度y与时间x成一次函数关系；停止加热-八年级数学
• 在平面直角坐标系内，一次函数y=kx+b（kb>0，b<0）的图像分别与x轴、y轴和直线x=4交于点A、B、C，直线x=4与x轴交于点D，四边形OBCD（O是坐标原点）的面积是10，若点A
• A市和B市分别有某种库存机器12台和6台，现决定支援C村10台，D村8台，已知从A市调运一台机器到C村和D村的运费分别是400元和800元，从B市调运一台机器到C村和D村的运费分别是3-八年级数学
• 某市火车货运站现有苹果1530吨，梨1150吨，安排一列货车将这批苹果和梨运往深圳市．这列货车可以挂A、B两种不同规格的货箱50节，已知用一节A型货箱的运费是0.5万元，用一节B-八年级数学
• The experiment has reached a stage ________ they can almost do nothing about it. [ ]A. whichB. thatC
• Faye's fondest memory is of last year, ____ the club gave a tea party for her birthday.[ ]A. th
• 点A（，3）是双曲线y=和直线y=kx+b的公共点，则b=（）。-八年级数学
• 某工厂计划为汶川地震灾区生产A、B两种型号的学生桌椅500套，以解决1250名学生的学习问题，一套A型桌椅（一桌两椅）需木料0.5m3，一套B型桌椅（一桌三椅）需木料0.7m3，工厂现-九年级数学
• I have reached a point in my life ________ I am supposed to make decisions of my own.[ ]A. whichB. w
• 如图所示，折线ABC是A地向B地打长途电话所需付的电话费y（元）与通话时间t（分）之间的函数关系的图象。当t≥3时，该图象的解析式为（）；由图象可知，通话2分钟需付电话费（）元，通-八年级数学
• 已知：在△ABC中，∠C=90°，AB=5cm，BC=3cm，AC=4cm，AB边上有一只小虫P，由A向B沿AB以1cm/秒的速度爬行，过P做PE⊥BC于E，PF⊥AC于F，求：（1）矩形PECF的周
• 如图，直线y=kx+6分别与x轴、y轴相交于点E和点F，点E的坐标为（-8，0），点A的坐标为（0，6）。（1）求k的值；（2）若点P（x，y）是第二象限内的直线上的一个动点，当点P运动过程中，试-八
• 已知正比例函数y=k1x的图象与一次函数y=k2x-9的图象交于P(3，-6)。（1）求k1、k2的值；（2）如果一次函数与x轴交于点A，求点A的坐标。-八年级数学
• The knee is the joint ____ the thigh bone meets the 1arge bone of the lower leg.[ ]A. whenB. whereC.
• The reason ____ he was late for the meeting was _____ he forgot to use the alarm clock. [ ]A. which;
• The small town is so good a place _____ many people come to visit ____it has become well known all o
• Generally speaking, the media can often help solveproblems and draw attention to the cases__________
• 如图，已知反比例函数y=的图象经过点A（1，-3），一次函数y=kx+b的图象经过点A与点C（0，-4），且与反比例函数的图象相交于另一点B(3，n)。（1）试确定这两个函数的解析式；（2）求△-九年
• She'll never forget her stay there ________ she found her son who had gone missing two years be
• Because of the financial crisis, days are gone ________ local 5star hotels charged 6,000 yuan forone
• 一次函数y=k1x-4与正比例函数y=k2x的图象经过点（2，-1），（1）分别求出这两个函数的表达式；（2）求这两个函数的图象与x轴围成的三角形的面积。-八年级数学
• In Australia, surfing is a popular sport among young people ____ they can seek excitement and advent
• 已知一次函数y1=kx+b的图像与反比例函数y2=(m≠0)的图像都经过点A（4，-1），且点B（0，1）又在一次函数图像，（1）试求这两个解析式；（2）在同一直角坐标系中，画出这两个函数的图象-八年
• 等腰三角形周长为10cm，底边BC长为ycm，腰AB长为xcm。（1）写出y关于x的函数关系式；（2）求x的取值范围；（3）求y的取值范围。-八年级数学
• 已知直线y=-x+b过点(3，4)。（1）求b的值；（2）当x取何值时，y>0?-八年级数学
• I have been keeping the portrait ______ I can see it every day, as it always reminds me of my childh
• The girl arranged to have piano lessons at the training centre with her sister ________ she would st
• —Where did you meet him?—It was in the hotel_____ he stayed.[ ]A. thatB. whichC. whereD. when-高二英语
• 已知一个一次函数y=kx+b，当x=-4时，y的值为9，当x=2时，y的值为-3（1）求这个函数的解析式；（2）在直角坐标系中画出这个函数的图象。-八年级数学
• It was in the hall______ we usually have dinner______ we had a dancing party last night. [ ]A. where
• They are going to fly to Yunnan,it is warm in this season. [ ]A. whereB. which C. asD. when-高二英语
• — Is that the small town you often talked about? — Right, just the one________ you know I used to wo
• — I will never forget the days ________ we studied in the same class.— Neither will I. [ ]A. whenB.
• I have got to the point ________ I must adjust myself to the new life. [ ]A. whatB. whichC. whereD.
• We're just trying to reach a point ______ both sides will sit down together and talk.[ ]A. wher
• You can reach the top of Mount Tai, ___you can enjoy the breath taking sights.[ ]A. whereB. thereC.
• — Can you believe I had to pay 30 dollars for a haircut?— You should try the barber's ________
• 如图，在直角坐标系中放入一个边长OC为9的矩形纸片ABCO将纸片翻折后，点B恰好落在x轴上，记为D,折痕为CE，已知tan∠ODC=0.75。（1）求点D的坐标。（2）求折痕CE所在直线的表达式-九年