评价一个人的健康状况要从()、()和()等三个方面去评价。
参考答案:身体,心理,社会适应
— Do Lucy and Lily have long hair?
— Yes, they do. But Maria _____ long hair.[ ]
A. don't have
B. doesn't have
C. has
D. doesn't has
当含Li+、Na+、K+的溶液进行离子交换时,各离子在交换柱中从上到下的位置为()
A、Li+、Na+、K+
B、Na+、K+、Li+
C、K+、Li+、Na+
D、K+、Na+、Li+