教育目的（狭义）
参考答案：教育目的：是指社会对教育所要造就的社会个体的质量规格的总的设想或总的规定。
— So far _____.
— That's too bad. [ ]
A. we received no letter from him
B. he haven't send us any message
C. nothing from him has been received
D. we won't hear from him
室温时，pH=10的氨水和Na2CO3溶液中，水电离产生的C（OH-）前者与后者之比（ ）
A．1：1
B．10¯10：10¯4
C．10¯4：10¯10
D．10¯10：10¯7
