GMAT考试易错题（2019/7/10）

第1题：设y=|x-2|+|x+2|，则下列结论正确的是()． A．y没有最小值 B、只有一个x使y取到最小值 C．有无穷多个x使y取到最大值 D、有无穷多个x使y取到最小值 E．以上结论均不正确

【单选题】： A     B     C     D     E

第2题： JJ79. 好像是三种不同颜色的车(a,b,c)比例为2:5:4，c比a多1300，问b有多少

【分析题】：

第3题：There are few things worse for a new parent than listening to a baby scream in hunger while a bottle of formula slowly warms up in a bowl of hot water. So why not just pop the bottle in the microwave and zap it in 20 secondsBecause microwaves heat fluids unevenly, and a hot pocket in the formula could seriously injure the baby. Which of the following is presupposed in the argument against heating formula in the microwave A、Babies generally refuse to eat formula that has been heated in a microwave. B、Microwave radiation might break down some of the proteins in formula that are vital to a baby’s health. C、Different microwaves use different amounts of power, and consequently some models could heat a bottle to scalding temperature faster than others. D、Parents cannot be expected to consistently even out the temperature of a microwaved bottle by shaking it vigorously before giving it to the baby. E、Once formula has been heated, any leftover formula should be discarded, because otherwise the formula could spoil between feedings and make the baby sick.

【单选题】： A     B     C     D

第4题：The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether A、 Statement (1)ALONE、is sufficient, but statement (2) alone is not sufficient. B、 Statement (2)ALONE、is sufficient, but statement (1) alone is not sufficient. C、BOTH statements TOGETHER are sufficient, but NEITHER statementALONE、is sufficient. D、EACH statementALONE、is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient. The symbol represents one of the following operations: addition, subtraction, multiplication, or division. What is the value of 7 [*] 4 [*]

【单选题】： A     B     C     D

第5题：There are 450 birds at a small zoo. The number of birds is 5 times the number of all the other animals combineD、How many more birds are there than non-bird animals at the zoo A、400 B、360 C、270 D、180 E、90

【单选题】： A     B     C     D