试题与答案

物质的性质决定其用途。有关物质的用途错误的是 A.熟石灰可用作改良酸性土壤 B.

题型:选择题

题目:

物质的性质决定其用途。有关物质的用途错误的是   

A.熟石灰可用作改良酸性土壤

B.烧碱可治疗胃酸过多

C.稀有气体可制成多用途电光源

D.用盐酸可以清除铁锈

答案:

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题型: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.

A farmer sells buckets of onions for $2, buckets of potatoes for $4, and buckets of squash for $5. How many buckets of squash did the farmer sell ?()
(1) The farmer sold one bucket of onions.
(2) In total, the farmer sold 7 buckets of produce for $33.

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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