非水滴定法测定维生素B1的含量，被测物与滴定液的摩尔比
A．1:1 B．1:2 C．1:3 D．2:1 E．3:1
参考答案：B
The comments ________ by the sales manager ________ marketing bothered his boss a lot.[ ]
A. made; being concerned
B. making; concerned
C. to make; be concerned
D. made; concerning
教学中“拔苗助长”、“陵节而施”违背了个体身心发展的( )
A．顺序性
B．阶段性
C．不平衡性
D．个别差异性
