癫痫持续状态通常是指（） A.连续的失神发作 B.连续大发作，意识持续丧失 C.单侧

冬天，风吹得电线“呼呼”响，而夏天却听不到，为什么？

工矿企业绿化的特殊性主要体现在环境恶劣、用地紧凑、（）、服务对象4个方面。

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.

If 5a=9b=15c, what is the value of a+b+c ？（）
(1) 3c-a=5c-3b
(2) 6cb=10a

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.

贮水箱的水位控制逻辑？

“全面检全面修”的检查范围和质量标准规定：铁路货车制动梁吊无裂损，圆销及（）无折断、丢失。