证券投资分析师应当相互尊重、团结协作，共同维护和增进证券投资分析师的职业声誉。( )
参考答案：对
Lingling didn't go to school yesterday. She __________.[ ]
A. is ill
B. was ill
C. are ill
D. were ill
临诊以贫血、腹泻、运动失调和被毛褪色为特征症状的疾病是（）。
A.铁缺乏症
B.锌缺乏症
C.铜缺乏症
D.锰缺乏症
E.硒缺乏症
