MBA每日一练（2019/6/11）

第1题：2≤x≤4． (1)等式|x-2|+|4-x|=2成立；(2)|x-3|≤4．

【分析题】：

第2题：在整个人群中，打呼噜的人非常少。一项最近的研究发现，打呼噜的人在吸烟的人中比在不吸烟的人中更常见，以此为据，研究者假设吸烟可能会导致打呼噜。 如果以下哪项正确，对研究者的假设提出了最强的质疑 A．对某些个人来说，压力导致了吸烟和打呼噜。 B．肥胖导致许多人打呼噜。 C．多数打呼噜的人不吸烟。 D．多数吸烟的人不打呼噜。 E．(E) 不吸烟的人也照样打Ⅱ乎噜。

【单选题】： A     B     C     D     E

第3题：The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (21) is truly the mother of invention. People usually devise tools to (22) for natural deficiencies. For example, people invented weapons to defend (23) from physically superior (24) .But (25) is only one incentive for inventions. People also invent (26) tools to (27) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (28) spear or javelin in order to shoot (29) and strike with greater strength. (30) civilizations developed, greater work efficiency came to be demanded, and (31) tools became more (32) .A、tool would (33) a function until it proved (34) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (35) for speed and high-quality results--provided they are achieved (36) reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions, (37) they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The (38) of this tool can be (39) to the development of commerce in theEast around 3000B、C、, and the abacus is known (40) by the ancientBabylonians,Egyptians,Chinese, etC、 A、ordinaryB、commonC、particular D、valuable

【单选题】： A     B     C     D

第4题：The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (21) is truly the mother of invention. People usually devise tools to (22) for natural deficiencies. For example, people invented weapons to defend (23) from physically superior (24) .But (25) is only one incentive for inventions. People also invent (26) tools to (27) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (28) spear or javelin in order to shoot (29) and strike with greater strength. (30) civilizations developed, greater work efficiency came to be demanded, and (31) tools became more (32) .A、tool would (33) a function until it proved (34) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (35) for speed and high-quality results--provided they are achieved (36) reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions, (37) they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The (38) of this tool can be (39) to the development of commerce in theEast around 3000B、C、, and the abacus is known (40) by the ancientBabylonians,Egyptians,Chinese, etC、 A、as a resultB、for one reason C、by no meansD、at any rate

【单选题】： A     B     C     D

第5题：It’s an annual back-to-school routine. One morning you wave goodbye, and that (1) evening you’re burning the late-night oil in sympathy. In the race to improve educational standards, (2) are throwing the books at kids. (3) elementary school students are complaining of homework (4) What’s a well-meaning parent to do "As hard as (5) may be, sit back and chill, experts advise. Though you’ve got to get them to do it, (6) helping too much, or even examining (7) too carefully, you may keep them (8) doing it by themselves. "I wouldn’t advise a parent to cheek every (9) assignment," says psychologist John Rosemond, author ofEnding the Tough Homework. "There’s a (10) of appreciation for trial and error. Let your children (11) the grade they deserve." Many experts believe parents should gently look over the work of younger children and ask them to rethink their (12) .But "you don’t want them to feel it has to be (13) ," she says. That’s not to say parents should (14) homework—first, they should monitor how much homework their kids (15) . Thirty minutes a day in the early elementary years and an hour in (16) four, five, and six is standard, says RosemonD、For junior-high students it should be " (17) more than an hour and a half," and two for high-school students, If your child (18) has more homework than this, you may want to check (19) other parents and then talk to the teacher about (20) assignment. A、with B、inC、out D、up

【单选题】： A     B     C     D

第6题：在黑、蓝、黄、白4种由深至浅排列的涂料中，一种涂料只能被它自身或者比它颜色更深的涂料所覆盖。 若上述断定为真，则以下哪项确切地概括了能被蓝色覆盖的颜色 Ⅰ．这种颜色不是蓝色。 Ⅱ．这种颜色不是黑色。 Ⅲ．这种颜色不如蓝色深。 A．只有Ⅰ。 B、只有Ⅱ。 C、只有Ⅲ。 D、只有Ⅰ和Ⅱ。 E、Ⅰ、Ⅱ和Ⅲ。

【单选题】： A     B     C     D     E

第7题：The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (21) is truly the mother of invention. People usually devise tools to (22) for natural deficiencies. For example, people invented weapons to defend (23) from physically superior (24) .But (25) is only one incentive for inventions. People also invent (26) tools to (27) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (28) spear or javelin in order to shoot (29) and strike with greater strength. (30) civilizations developed, greater work efficiency came to be demanded, and (31) tools became more (32) .A、tool would (33) a function until it proved (34) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (35) for speed and high-quality results--provided they are achieved (36) reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions, (37) they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The (38) of this tool can be (39) to the development of commerce in theEast around 3000B、C、, and the abacus is known (40) by the ancientBabylonians,Egyptians,Chinese, etC、 A、enemies B、neighbors C、disastersD、animals

【单选题】： A     B     C     D

第8题：若实数x，y满足条件：x2+y2-4x+1=0，则 的最大值为( )

【单选题】： A     B     C     D

第9题：一国丧失过量表土，需进口更多的粮食，这就增加了其他国家土壤的压力；一国大气污染，导致邻国受到酸雨的危害；二氧化碳排放过多，造成全球变暖、海平面上升，几乎可以危及所有的国家和地区。 下述哪项最能概括上文的主要观点 A．环境危机已影响到国与国之间的关系，可能引起国际争端。 B．经济的快速发展必然导致环境污染的加剧，先污染、后治理是一条规律。 C．在治理环境污染问题上，发达国家愿意承担更多的责任和义务。 D．环境问题已成为区域性、国际性问题，解决环境问题是人类面临的共同任务。 E．各国在环境污染治理方面要量力而行。

【单选题】： A     B     C     D     E

第10题： 对于进出口合同的订立，错误的是：( )。 A．等价有偿是合同生效的条件之一 B．确认书可以是合同形式之一 C．金额不大、批数较多的小土特产品通常用简式合同 D．订单不能被采用为合同形式

【单选题】： A     B     C     D