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问题 单项选择题

在零件自制和外购决策中，若成本无差别点数量为1000件时，则选择自制方案的必要条件是：全年需用零件的数量（）

A.大于1000件

B.小于1000件

C.不多于1000件

D.等于1000件

答案

参考答案：B

多项选择题

* * 灌洗的溶液有（）。

A.0.025%碘伏溶液

B.0.2%苯扎溴铵溶液

C.生理盐水

D.1：5000高锰酸钾溶液

E.0.5%醋酸溶液
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单项选择题

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.

What is the area of the rectangular region depicted above with sides A and B and diagonal C ？（）

(1) C2=9+A2

(2) A+B=7

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 statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.
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