为争夺地中海霸权，罗马长期与哪个国家进行了争夺战[ ]
A．迦太基
B．波斯
C．希腊
D．斯巴达
答案：A
10. Heart trouble is one of the most serious _____ of death among old people.
A．reasons
B．troubles
C．illnesses
D．Causes
