A.They react the way they do to any other research.
B.They are especially critical of the quality of the research.
C.They offer unusually good suggestions for improving the work.
D.They show a lot of sympathy for the student researcher.
第3题
水凝胶、难溶性和肠溶性材料等主要用于基质型缓控释剂型,为调节制剂的释药速度,常常加入适量()
A、成膜剂
B、致孔剂
C、增塑剂
D、润湿剂
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