Acrobats and gymnasts are in danger of hurting themselves in Cirque du Soleil performances because______.
A. they haven’t practiced enough
B. the equipment is in need of repairs
C. they perform. risky acts without nets
D. some are HIV positive
正确答案：C
第八段说马戏团的杂技演员在表演时没有安全网一旦受伤便会有出血的可能因此与艾滋病病毒携带者共同演出是危险的
