【多选题】Training objectives should be:
【判断题】Teaching objectives should be as detailed as possible
【判断题】有效性的衡量要综合考虑效率和效益两个因素。()
【判断题】Financial objectives should be quantitative so that their achievement can be measured.
【判断题】Objectives should be set higher than can be attained
【单选题】关于外毒素的叙述,下列哪项是错误的
B.
主要由革兰阳性菌产生,少数革兰阴性菌也能产生