若，则x：y：z=（）。-七年级数学

更多内容推荐

• After a long and tiring flight, Mr. Ritz was frustrated at the news _____ his luggage had been sent
• 已知三个数x，y，z的最小公倍数是300，并且满足，则此方程组的解为（x，y，z）=（）。-八年级数学
• 已知满足2x-y=12-5m和x+3y=20-6m的x，y也满足3x+2y=23-2m，则m的值是[]A.0B.1C.2D.-七年级数学
• ______ is no possibility ______ she can finish the task in two hours.[ ]A. There; that B. It; that C
• Danby left word with my secretary _____ he would like to call again tomorrow. [ ]A. who B. that C. a
• 方程组的解是[]A．B．C．D．-九年级数学
• — It's thirty years since we last met. — But I still remember the story, believe it or not, ___
• In the recent G20 Summit, President Hu seriously get the statement _____ to the world _____ European
• The Green Corporation donated the property to the state of California, with one condition _____ the
• I have no doubt in my mind ____ they will be glad to see me. [ ]A. if B. whether C. thatD. about -高一
• 如果方程ax-y=9，2x+3y-1=0，3x-y=7有公共解，求a的值。-七年级数学
• Is it the fact ____ he hasn't turned in his research report?[ ]A. whether B. that C. whichD. wh
• Nobody believed his reason for being absent form the class _____ he had to meet his uncle at the air
• Word is going around _____a new lose will take charge of our company next year. [ ]A. when B. whichC
• Word came from Chile _____at least 300 people were killed in the 8.8-magnitude earthquake. [ ] A. wh
• The fact has worried many scientists _____ the earth is becoming warmer and warmer these years. [ ]A
• — Is there any possibility _____you could pick me up at the airport? — No problem. [ ]A. when B. tha
• The problem will appear_____ a different welfare system will be created. [ ]A. unless B. whether C.
• 由方程x+t=5，y-4=2t组成的方程组可得x，y的关系式是[]A.x+y=9B.2x+y=7C.2x+y=14D.x+y=3-七年级数学
• They asked the government to make _____ clear to the public _____ they did was right. [ ]A. it; that
• I see from the information you have sent me ______ you come from London. [ ]A. which B. that C. who
• A warm thought suddenly came to me ____ I might use the pocket money. to buy some flowers for my mot
• Doris' success lies in the fact _____ she is co-operative and eager to learn from others.[ ]A.
• There is much chance _____ Bill will recover from his injury in time for the race. [ ]A. that B. whi
• Some researchers believe that there is no doubt_____ a cure for AIDS will be found. [ ]A. which B. w
• There is clear evidence _____ the most difficult feeling of all to interpret is bodily pain. [ ]A. w
• The Super Girl Wang Bei's death highlights the fact _____ cosmetic surgery has become one of Ch
• The news _____ Joan will be our new English teacher is true. [ ]A. that B. what C. how D. when -高一英语
• You may _____he will come here to give us a hand. [ ]A. rely on B. rely on it C. rely on that D. rel
• One cause of this attitude students have can be represented by the fact _____ young teachers don
• Modern science has given clear evidence _____ smoking can lead to many diseases.[ ]A. whatB. which C
• When the news came _____the war broke out, he decided to serve in the army. [ ]A. since B. which C.
• We should consider the students' request _____the school library provide more books on popular
• Danby left word with my secretary _____ he would call again in the afternoon. [ ]A. who B. that C. a
• What shocked the world was the fact _____challenger crashed just minutes after take-off. [ ]A. which
• Word has come _____the plane will take off on time. [ ]A. that B. what C. whichD. that what -高二英语
• Was it at the beginning _____ you made the promise _____ you would do all to help make it? [ ]A. tha
• More and more Chinese people follow the practice _____ they will travel to various scenic spots to e
• We have no idea at all ______ the economic crisis will end. [ ]A. when B. that when C. whatD. that -
• Danby left word with my secretary _____ he would call again in the afternoon. [ ]A. who B. that C. a
• There is no doubt ____ Mr. Zhang will sign the contract (合同) with us. [ ]A. when B. whether C. if D.
• Do you have any idea _____ is actually going on in the classroom? [ ]A. that B. whatC. as D. which -
• News came from the company _____my brother was fired due to his bad performance. [ ]A. which B. wher
• 植物生活中需要最多的三类无机盐是（）A．氮、磷、钾B．氮、磷、铁C．氮、硫、钾D．硼、磷、锌-八年级生物
• 植物需要量最大的无机盐是（）A．氮、磷、钾B．钾、钙、镁C．铁、硼、钾D．钠、钾、铁-七年级生物
• 给庄稼、花草施肥对植物生长的意义（）A．为庄稼、花草提供充足的水分B．为庄稼、花草提供无机盐C．为庄稼、花草提供足够的有机物D．以上三项都正确-生物
• 种植农作物时，最好施用的肥料是（）A．氨肥B．磷肥C．钾肥D．农家肥-生物
• 无土栽培是指（）A．植物浸在水里的栽培B．无需无机盐的栽培C．在配制好的营养液中栽培D．浸在农家肥里的栽培-生物
• 下列蔬菜中需要含氮无机盐较多的是（）A．花生B．白菜C．番茄D．马铃薯-生物
• 某同学按如图所示方法进行了无土栽培的尝试，下列有关叙述不正确的是（）A．甲乙两装置应放在相同的适宜环境中B．甲植株生长的好的原因是土壤浸出液中含有植物生长所需的无机盐C-生物