单选题
According to the first paragraph, the task of education is fairly complicated because ______.
A、
the current public school system is too complicated to be understood
B、
the public school system has no choice of what to teach
C、
it is difficult to decide whether elementary science should be taught in public schools
D、
the educators have to take care of both ordinary and gifted students
【正确答案】
D
【答案解析】
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