蔬菜、水果中有害化学物质的污染包括（）。
A.农药
B.工业废水
C.硝酸盐与亚硝酸盐
D.肠道致病菌
E.寄生虫卵
参考答案：A, B
《我的叔叔于勒》中写吃牡蛎一节的主要作用是[ ]
A、让菲利普夫妇有登场亮相的机会。
B、让故事的内容更有波澜。
C、让故事情节得以向前发展。
D、让“我”看得清父母虚伪的真面目。
A CFA Institute member puts the following statement on her resume: "I passed each level of the CFA exam on the first try." Is this a violation of Standard Ⅶ (B)（）
A. No, because it is a statement of fact.
B. Yes, because she incorrectly refers to the CFA exam.
C. Yes, because saying she passed exams on the first try is not appropriate.
