单项选择题
机体免疫系统接受抗原刺激发生一系列反应，并以排出或分解该抗原为目的的反应过程
- A．免疫防御
B．免疫自稳
C．免疫监视
D．免疫应答
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问答题
Mother: Tell us of the accommodations in steerage, Mr. Dawson. I hear they're quite good on this ship. Jack: The best I've seen, ma'am. Hardly any rats. Fiancé: Mr. Dawson is joining us from the third ____1______. He was of some assistance to my fiancée last night. Rose: It turns out that Mr. Dawson is quite a fine ____2______. He was kind enough to show me some of his work today. Fiancé: Rose and I differ somewhat in our ____3______ of fine art. Not to impugn your work, sir. Jack: Are these all for me? Molly: Just start from the outside and work your way in. Man: guy: He knows every rivet in her, don't you, Thomas? Rose: Your ship is a wonder, Mr. Andrews. Truly. Andrew: Thank you, Rose. Waiter: How do you take your caviar, sir? Jack: No caviar for me, thanks. Never did like it much. Mother: And where exactly do you live, Mr. Dawson? Jack: Right now, my address is the RMS Titanic. After that, I'm on God's good humor. Mother: And how is it you have means to travel? Jack: I work my way from place to place. You know, tramp steamers and such. But I won my ticket on Titanic here at a lucky hand at _4_________. A very lucky hand. Man: All life is a game of luck. Fiancé: A real man makes his own luck, Archie. Right, Dawson? Mother: And you find that sort of rootless ___5_____ appealing, do you? Jack: Yes, ma'am, I do. I mean, I've got everything I need right here with me. I got air in my lungs and a few blank sheets of paper. I love ___6_______ up in the morning not knowing what's gonna happen or who I'm gonna meet, where I'm gonna wind up. Just the other night I was sleeping under a ____7______ , and now here I am on the grandest ship in the world, having champagne with you fine people. (to the waiter)I'll take some more of that. I figure life is a _____8_____ and I don't intend on ____9______ it. You never know what hand you're gonna get dealt next. You learn to take life as it comes at you. Here you go, Cal. To make each day _______10___. Molly: Well said, Jack. Rose: To make it count. -
单项选择题
德国教育家凯兴施泰纳认为实施公民教育的机构应该是 A、国民学校 B、现代学校 C、职业学校 D、劳作学校 -
未知题型
Productivity is the yardstick by which socioeconomic revolutions are measureD.Plows initiated the agrarian revolution by greatly improving the productivity of farmers. Engines, and (1)_____ electricity, (2)_____ the industrial revolutions by (3)_____ improving the productivity of workers in manufacturing and transportation. If there is to be a true in formation revolution, then computers will have to (4)_____ the pattern with information and information work.Information technology has (5)_____ begun to improve productivity, and it has even hurt it in some cases; it takes longer to wade (6)_____ those endless automated phone answering menus (7)_____ it does to talk to a human operator. (8)_____, productivity will rise (9)_____ computers and communications are used in the Information Marketplace to relieve people of brain work (10)_____ industrial machinery relieved us of physical work.The Information Marketplace will give (11)_____ to two great new forces that will drive (12)_____ in the twenty-first century. (13)_____, most people and companies buy new computers because the hardware has faster processors or more storage capacity, or because it is fashionable to own a new model, (14)_____ because competitors have bought them and 'we can't afford to fall behinD.' Imagine the (15)_____ of a company buying a new device be cause the motor turns at a higher (16)_____, or because it's in vogue to do so, or because the competition just bought that model (17)_____ of whether the machine can move any more earth in an hour!Let's explore how the Information marketplace might help us in the (18)_____ quest to get more results for less (19)_____. To do this, we will first examine a series of 'faults'—ways in which computer technology is (20)_____ today, because of either technological or human weaknesses. Correcting these faults will be the first step toward increasing our productivity. Making the Information Marketplace easier to use will be the second step.A.sinceB.thenC.beforeD.later
A.B.
C.'
D.
A.since
B.then
C.before
