函数y=x3+12xx-1的单调递增区间为______. 发布时间:2017-05-14 12:58 │ 来源:www.tikuol.com 题型:填空题 问题: 函数y=x3+12xx-1的单调递增区间为______.
题型:填空题 阅读理解。Read the following six advertisements and answer the questions for each of them. Advertisements (广告) HOUSE FOR SALEComfortable family home with large garden on north side of town. Three bedrooms, living room, kitchen, bathroom. Offer over $ 35,000ASSISTANT WANTED For busy restaurant. Some evening and weekend work. All meals free. Ring 3320178 JOIN OUR FOOTBALL TEAM Boys and girls wanted to play in local football team. Aged 9—13Meet in Green Park on Fridays at 3 p.m. ROOM FOR RENT Small room to rent in city center flat above restaurant.Newly painted with modern furniture. Near main railway station. Buses pass front door. Phone 3322108 SEAVIEW HOLIDAY FLATSSet in lovely gardens5 minutes' walk from beach children's playground Enjoy your own cooking MODERN KITCHEN IN EVERY FLAT SEAVIEW HOTEL Near sea and sands beautiful groundchildren welcome THREE FIRST-CLASSRESTAURANT1. The Browns are looking for a new house. Mr. Brown wants to live in the north of town near his workplace. Mrs. Brown wants a house with four bedrooms. The Browns' children don't care what the house is like as long as (只要) the garden is big enough. Why didn't the Browns buy the house in the advertisement? [ ]A. it was on the wrong side of the town. B. There weren't enough bedrooms. C. There was no dinning room. D. The garden was too big. 2. Man: Why don't we rent (租、借) one of the Sea view Holiday Flats for our holiday, Mary? They sound just as good as the Sea view Hotel, and it would be much cheaper. Mary: There's one big difference between the holiday flats and the hotel. The hotel would be muchless work. Why would Mary rather stay at the hotel?[ ]A. They wouldn't have to cook.B. It's not so expensive. C. She would enjoy the beautiful gardens. D. It's near the sea.3. Tom: There's a new football team standing in the village, Mum. I'm old enough to play in it. We stop school at half past three, so I'd have plenty of time. Mum: Well, I suppose you could do your homework later. But look, Tom, you haven't read the advertisement carefully. You can't possibly play for this team. Why can't Tom play for the new football team? [ ]A. He's not old enough. B. Tom hasn't read the advertisement carefully. C. School stops too late. D. He has to do his homework4. Man: I'm looking for a room to rent. It doesn't matter how big it is. I don't care what colour the walls are or how old the furniture (家具) is. I've got to study for my exams, so the house must be quiet and near the school. Girl: There are some advertisements for rooms in the paper. What about this one? Man: Yes… Yes… that's all right. Oh, dear, no, I don't think it would do. What's wrong with the room in the advertisement about rooms?[ ]A. It's too small. B. The walls are the wrong colour. C. The man likes old furniture better. D. It's too noisy. 5. Ann has always wanted to work in a restaurant. She thinks they're exciting places. It's hard work but sheisn't lazy. You have to work on Saturdays and Sundays but you get other days off. It's not very well-paid, but who cares about money? Why does Ann want to get the job in the restaurant? [ ]A. It's an easy job. B. The pay is good and the food is free. C. She thinks it would be fun. D. You get long holidays 查看答案
题型:填空题 据《明史·舆服志》载“皇帝常服:……袍黄,前后及两肩各织金盘龙一……天顺 二年,定官民衣服不得用蟒龙、飞鱼……并玄、黄、紫诸色。违例治以重罪”。上述材料①有利于研究古代中国服饰的发展演变②佐证了古代中国曾明确限定官民的服饰③有助于研究古代中国君主专制的演变④说明了明代国家法律建设的发展与完善A.①③④B.①②④C.①②③D.②③④ 查看答案
题型:填空题 某无色溶液可能含有下列钠盐中的几种:(A)氯化钠;(B)硫化钠;(C)亚硫酸钠;(D)硫代硫酸钠;(E)硫酸钠;(F)碳酸钠。向此溶液中加入适量稀硫酸,有浅黄色的沉淀析出,同时有气体产生。此气体有臭鸡蛋气味,可使澄清的石灰水变浑浊,不能使品红试液褪色。根据上述实验现象回答下列问题。此无色溶液中至少存在哪几种钠盐请写出全部可能的情况(填写相应的字母)。 第一种情况是______,第二种情况是______。 第三种情况是______,第四种情况是______。 查看答案