Light is the word of heavy.[ ]
A. view
B. twin
C. friend
D. opposite
答案：D
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.
Is the value of x3y-x2y2+xy3 equal to 0 ？（） (1) x=0 (2) y=0
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.
砼开盘鉴定的结果应符合（）。
A、生产使用的原材料应与配合比设计一致
B、砼拌合物性能应满足施工要求
C、砼强度评定应符合设计要求
D、砼耐久性能应符合设计要求
