A文件某项数据对应的质量控制码为2时，表示（）。A.数据有疑误 B.数据正确 C.数

希腊数学家丢番图（公元3～4世纪）的墓碑上记载着： “他生命的六分之一是幸福的童年；再活了他生命的十二分之一，两颊长起了细细的胡须；他结了婚，又度过了一生的七分之一；再过五年，他有了儿子，感到很幸福；可是，儿子只活了他父亲全部生命的一半；儿子死后，他又在极度的悲伤中度过了四年，也与世长辞了.”

根据以上的信息，请你计算出：

(1)丢番图死时多少岁？

(2)丢番图结婚时多少岁？

冬天暖气片常常安装在室内_____方的原因是_______________。

托运哪些物品必须派人押运？

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.

In what year was Edward born ？（）
(1) In 1988, Edward turned 17 years old.
(2) Edward’s sister Lisa, who is 14 months older than Edward, was born in 1970.

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.

灾荒的成因有哪些？