大家在备考GMAT考试的时候，需要准备的复习材料很多，对于计划参加GMAT考试的人来说，要想在GMAT考试中获取好的成绩，做适量的练习是必须的，下面就通过解答下面的GMAT练习材料来总结一些解题方法吧。

1.A publisher is now providing university professors with the option of ordering custom textbooks for their courses. The professors can edit out those chapters of a book they are not interested in and add material of their own choosing.

The widespread use of the option mentioned above is LEAST likely to contribute to fulfilling which of the following educational objectives?

(A) Coverage of material relevant to a particular student body’s specific needs

(B) Offering advanced elective courses that pursue in-depth investigation of selected topics in a field

(C) Ensuring that students nationwide engaged in a specific course of study are uniformly exposed to a basic set of readings

(D) Making the textbooks used in university courses more satisfactory from the individual teacher’s point of view（C）

(E) Keeping students’ interest in a course by offering lively, well-written reading assignments

2.  Mechanicorp’s newest product costs so little to make that it appears doubtful the company will be able to sell it without increasing the markup the company usually allows for profit: potential clients would simply not believe that something so inexpensive would really work. Yet Mechanicorp’s reputation is built on fair prices incorporating only modest profit margins.

The statements above, if true, most strongly support which of the following?

(A) Mechanicorp will encounter difficulties in trying to set a price for its newest product that will promote sales without threatening to compromise the company’s reputation.

(B) Mechanicorp achieves large annual profits, despite small profits per unit sold, by means of a high volume of sales.

(C) Mechanicorp made a significant computational error in calculating the production costs for its newest product.

(D) Mechanicorp’s newest product is intended to perform tasks that can be performed by other devices costing less to manufacture.（A）

(E) Mechanicorp’s production processes are designed with the same ingenuity as are the products that the company makes.

3.Companies in the country of Kollontay can sell semiconductors in the country of Valdivia at a price that is below the cost to Valdivian companies of producing them. To help those Valdivian companies, the Valdivian legislature plans to set a minimum selling price in Valdivia for semiconductors manufactured in Kollontay that is ten percent greater than the average production costs for companies in Valdivia.

Which of the following, if true, most seriously threatens the success of the plan?

(A) The annual rate of inflation in Kollontay is expected to exceed ten percent within the next year.

(B) Valdivia is not the only country where companies in Kollontay currently sell semiconductors.

(C) Some Valdivian companies that sell semiconductors have announced that they plan to decrease their price for semiconductors.

(D) The government of Kollontay will also set a minimum price for selling semiconductors in that country.（E）

(E) Emerging companies in countries other than Kollontay will still be able to sell semiconductors in Valdivia at a price below the cost to Valdivian companies to manufacture them.

4.An experimental microwave clothes dryer heats neither air nor cloth. Rather, it heats water on clothes, thereby saving electricity and protecting delicate fibers by operating at a lower temperature. Microwaves are waves that usually heat metal objects, but developers of a microwave dryer are perfecting a process that will prevent thin metal objects such as hairpins from heating up and burning clothes.

Which of the following, if true, most strongly indicates that the process, when perfected, will be insufficient to make the dryer readily marketable?

(A) Metal snap fasteners on clothes that are commonly put into drying machines are about the same thickness as most hairpins.

(B) Many clothes that are currently placed into mechanical dryers are not placed there along with hairpins or other thin metal objects.

(C) The experimental microwave dryer uses more electricity than future, improved models would be expected to use.

(D) Drying clothes with the process would not cause more shrinkage than the currently used mechanical drying process causes.（E）

(E) Many clothes that are frequently machine-dried by prospective customers incorporate thick metal parts such as decorative brass studs or buttons.

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