不宜生吃鲜蛋是因为生蛋清中含有()
A.红细胞凝血素
B.异黄酮
C.抗生物素蛋白
D.硫胺素酶
E.抗胰蛋白酶因子
参考答案：C, E
战略风险属于一种（）。
A．短期的显性风险
B．短期的潜在风险
C．长期的显性风险
D．长期的潜在风险
请根据下面提示，写一篇短文。词数不少于50。
You are discussing the following picture with your English friend Jim. Now you are telling him how you understand the picture and what makes you think so.
