若方程有负数根，则k的取值范围是（）。-七年级数学

更多内容推荐

• 解方程：。-八年级数学
• Though she has been in England for half a year, she is still unable to _____ in simple English.[ ]A.
• “Boys and girls, I’m very glad to_____ you some difference between American English and British Engl
• --- Do you want anything else for your birthday?--- Nothing else. I’m very ______ with what you’ve b
• He _____ his work with animals.A．is famous asB．is famous forC．is well known asD．is well known to-高一英
• 分式方程的解为（）。-九年级数学
• The band ________ in about 1970, but happily they reunited in the mid-1980s.A．broke upB．broke inC．br
• 解方程：（1）；（2）；（3）。-七年级数学
• 若方程有增根x=5，则m=（）。-八年级数学
• 解方程或解不等式组：（1）；（2）。-九年级数学
• The group of students went to the suburb, did some research work, and ________ the water in the rive
• 用换元法解分式方程，若设，则原方程可化为关于y的整式方程是[]A.y2-3y-2=0B.3y2-2y-1=0C.3y2-y+2=0D.y2-2y-3=0-九年级数学
• — When shall we go to visit her? — Take your time. I'll ____ you at your office then. [ ]A. cal
• Would you please drive more quickly? My plane will_____in twenty minutes.I want to but safety comes
• 要使与的值相等，则x=（）。-八年级数学
• 满足方程的x值是[]A.1B.2C.0D.没有-七年级数学
• He _______to get some cards for his birthday,butnone arrived.[ ]A. promised B. expectedC. thought D.
• 若，则（）。-八年级数学
• In a typhoon ,winds __ a speed greater than 120 kilo-meters per hour. [ ]A. assumeB. accomplish C. a
• The continuous rain was_______for the exceptionalpoor harvest. [ ]A. blamedB. condemned C. accused D
• Although the manager did not mention any names at meeting, everyone knew who he was _____.A．leading
• The president spoke at the business meeting for nearly an hour without _____ his notes.A．looking do
• - The enemy didn’t stop, instead they ________ towards the village at a faster speed.- So the villag
• He had a good disguise, but as soon as he spoke he _____himself. [ ]A. missed B. lost C. betrayed D.
• — How about the book you are reading?— Good indeed. It _______many problems we havecome across in ou
• Jack came home so thin and weak that his children hardly ___ him.[ ]A. knewB. receivedC. admittedD.
• I support your decision, but I should also make itclear that I am not going to be __ to do it. [ ]A.
• 已知关于x的方程的解为，则m=（）。-八年级数学
• （1）计算；（2）解方程+=2。-八年级数学
• As we joined the big crowd I got_____from my friends.[ ]A. separatedB. sparedC. lostD. missed-高二英语
• - How much did the salesmen ________ for this machine?- Almost four hundred dollars. [ ]A. paidB. ch
• In the supermarket foreign names of the products got_______, and I was confused about what to buy.A．
• Cold tea __________ an excellent drink when it is very hot in summer.A．makesB．producesC．servesD．turn
• He said, “Don’t do that again.” He _____ me _______ that again.A．said to me; not to doB．said to me;
• 已知用x的代数式表示y为（）。-八年级数学
• Hurricane Sandy hit America violently.__________, about 140 deaths were caused by it.A．As a ruleB．As
• 解分式方程：。-九年级数学
• I remember her face but I cannot_________where Imet her.[ ]A. recallB. remindC. retellD. remark-高二英语
• Fully_________in looking after three children athome ,she no longer has time to enjoy the various ac
• 解方程：。-九年级数学
• I am afraid we cannot include the item you suggest, as it does not __________ the rest of the progra
• The teacher asked us to ______ all the words on the blackboard.A．set offB．get onC．set downD．get alo
• 用换元法解分式方程，若设2x2-x=y，则原方程可化为关于y的整式方程是（）。-九年级数学
• Dust and dirt soon______if a house is not cleaned regularly. [ ]A. accumulateB. accurate C. accelera
• Our English teacher is ill, and we are all ______ her health.A．concerned aboutB．careful ofC．grateful
• 解下列方程：（1）；（2）。-八年级数学
• Considering his health, I advise him to _____an hour or two each day to work out.A．set asideB．set of
• — What did the doctor say?— He _______ Jim to _________in bed for 2 days. [ ]A. said; lieB. advised
• Little Johnny felt the bag, curious to know what it_______. [ ]A. collectedB. contained C. loadedD.
• Finally I turned the key in the lock and_____ the door open, with Dad still complaining (抱怨) about a