函数中自变量的取值范围是-九年级数学

更多内容推荐

• The reporter said that UFO from east to west when he saw it.A．was movingB．is movingC．moveD．moves-高一英
• —Ring me at six tomorrow morning ,will you?—Why that early? I_____.A．will be sleepingB．have sleptC．h
• ---The window is dirty.---I know. It ______ for ages and I’m considering giving the task to our chil
• Jack _______ the test for further study in the college. Let’s have a party to congratulate him.A．pas
• It is time that we ____ ready for the final examination.A．gotB．getC．will getD．would get-高二英语
• I left my pen on the desk and now it’s gone; who ________ it? A．tookB．has takenC．will takeD．had take
• 如果有意义，那么字母的取值范围是.-八年级数学
• ---- What did you do last Sunday, Peter?---- Well, I ______ to see a friend of mine, but in the end
• 计算：（1）；（2）。-九年级数学
• 的值是（）A．±6B．6C．D．－6-八年级数学
• Don’t be afraid of difficulties. They can help you______ experience, and experience can, in return,
• If the weather had been better, we could have gone outing. But it ____ all day.A．rainsB．has rainedC．
• —What are you going to do this afternoon?—I am going to the cinema with some friends. The film ____
• I ______ the TV series The Legend of Zhenhuan when my mom made a phone call to me.A．am watchingB．wat
• ---How can you keep slim as a mother of two sons?---I _______ in the gym for years.A．have worked out
• 23. The way the guests_____in the hotel influenced their evaluation(评价) of the service.A．treated B．w
• I________ an important conference at 10 o’clock this Sunday morning.A．will have attendedB．will be a
• A high-tech exhibition ________in the National Museum now. Let’s go and visit it.A．will be heldB．is
• I hope you enjoyed the film last night.How on earth do you know I went to a film? I ________ you.A．w
• My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport t
• No one _______ the building without the permission of the policeman.A．is leavingB．will be leavingC．
• He ___ speak on TV tonight.A．was toB．is toC．will beD．has-英语
• No one knows if________that boy, but if________him, her parents will be disappointed. [ ]A. she will
• —Alice, why didn’t you come yesterday? —I ___, but I had an unexpected visitor.A．had B．wouldC．was go
• --- Hi, Grandma, why do you look so tired? --- I’m tired. I _______ the cleaning all morning.A．didB
• I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.A．isn'
• I have _____ an eye _____ you now, so you do as you _____! A．left; over; have toB．to keep; on; were
• I ___ to the hotel last night.A．reachedB．arrivedC．gotD．arrive-英语
• —You may find the key to the math problem on page 107．—Ah, it's so simple. I wonder why I _____
• The villagers _______ closing down the factory, but till now the local government hasn’t _______to i
• The policeman came up to the house, whose door was open, _____ there for a while, and went in.A．to s
• I wonder if she______us,but I think if she______us we will be able to complete the task ahead of tim
• 求下列各式中的未知数的值：（本题8分，每小题4分）（1）2x2－8="0"（2）-八年级数学
• ----I went fishing with my father last Saturday and we watched a funny cartoon at night. ----_______
• --Our English teacher is back home from Britain now.--Yes, she _____there for just three months.A．ha
• Is honesty the best policy? We _that it is when we are little.A．will teachB．teachC．are taughtD．will
• How ______ you ______ with the new job?A．do, doB．do, get alongC．are, doingD．are, getting on-英语
• You’ve failed to do what you _____ to and I’m afraid the teacher will blame you.A．will expectB．will
• -- Daniel，why are you so late? We_______ you would be here an hour ago.--- Sorry. I _______ know you
• 计算-九年级数学
• 已知a+b=-8，ab=8，化简bba+aab=______．-数学
• I have to go to work by taxi because my car _____ at the garage.A．will be repairedB．is repairedC．is
• --- I’d like to buy the kind of cloth which _____ easily.--- Will this one ________?A．washes; doB．wa
• Trust him please! When he _______ reading it, he will return the book to you on time.A．finishB．will
• ．You’ve failed to do what you ____________to and I’m afraid the teacher will blame you．A．will expect
• ----Why ? Where’s the key to the meeting room? ----Dear me! You ______it in the taxi!A．had never lef
• -----Did Alan enjoy seeing his old friends yesterday?----- Yes, he did. He _____ his old friends for
• Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fibrotic（光纤的）communications,
• --- ________ the class done most of the work? --- Yes, but the rest ___________ rather difficult.A．H
• 已知m为实数，则代数式m+3--m2-12-4m的值为（）A．0B．-3C．3D．无法确定-数学