能否使用自制或未经检测合格的索具？
参考答案：不能使用自制或未经检测合格的索具。
____ without friends _____ the most difficult challenge for Chuck while living on the island. [ ]
A. How does he survive, are
B. How to survive, are
C. How does he survive , is
D. How to survive, is
基金管理公司、基金代销机构在销售基金时不得给予投资人折扣、不得给予中间人佣金。（）
