属于人生价值的内容的有( )
A．自我价值 B．社会价值C．交换价值 D．剩余价值
参考答案：A,B
—Mrs White always helps others _____ she is very busy. —She is so kind.
A. but B. because C. although
前早闭或过小常见的疾病是答案（）
A.小头畸形
B.佝偻病
C.呆小病
D.脑积水
