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问题 单项选择题

如图所示，下列关于姜片虫病的临床表现，错误的是()

A．轻度感染时症状轻微，仅有腹部不适或消化不良

B．腹痛常位于下腹，每天饭后发生

C．腹泻为早期症状

D．重度感染时，有食欲减退、腹泻、腹痛等恶心呕吐等症状

E．某些患者吐虫或自动排虫

答案

参考答案：B

选择题
在三角形ABC中，A=60°，a=4
3
，b=4
2
，则（　　）
A．B=45°或135°B．B=135°
C．B=45°D．以上答案都不对
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单项选择题

Which of the following is most likely a recommended procedure for compliance with the Standards of Professional Conduct relating to loyalty, prudence, and care Members should:

A. make their clients aware of all forms of manager compensation.
B. seek best execution for their clients in any circumstance.
C. diversify investments to reduce the risk of loss in any circumstance.
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