哪一项不是药学信息系统服务质量指标
A．可靠B．及时C．先进D．普及E．新颖
参考答案：D
He had little idea that it was getting so late, ________?[ ]
A. didn't he
B. wastn't it
C. did he
D. was it
有位学生已知道“先乘除，后加减”的运算法则，但在运算11+3x7=？时，还是把11与3加起来再乘以7，这是受（）影响的表现。
A.定势
B.逆向迁移
C.正迁移
D.水平迁移
