【简答题】When a call ,what are the ways to sound as good as you really are ?
【单选题】He must be helping the old man to water the flowers, _____? [ ]
【单选题】He must be a student,_______?
【判断题】菌物界这个名词是由我国学者裘维蕃于1990年提出的
【简答题】when a call what are the "do's"?
【单选题】肺灌注常用显像剂 99mTc-MAA ,其颗粒大小为
【判断题】It is polite to use"could"or "may" when making a call.
【简答题】when a call what are the "don't?