成年人缺乏维生素D将导致()
A．皮肤病
B．夜盲症
C．脚气病
D．坏血症
E．骨软化病
参考答案：E
对下列生物进行分类，并写出你的分类依据．
家鸽、蜻蜓、青菜、玫瑰、鲫鱼、木耳、金丝猴、白鳍豚、蜗牛、放线菌．
— Would you like to come?
— Thank you. _____, but I'm busy. [ ]
A. I like
B. I would like
C. I want
D. I'd love to
