题目：
Which of the following would the nurse expect to include in a community health program designed to control sexually transmitted diseases (STDs)
A．Mass screening of all individuals.
B．Location of the possible sources of infection.
C．Treatment of those with the disease.
D．Isolation of those suspected of having STDs.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：信用风险指证券发行人在证券到期时无法还本付息而使投资者遭受损失的风险。债券的信用风险是债券不能到期还本付息的风险，是债券的主要风险，因为债券是需要按时还本付息的要约证券。政府债券的...
