【单选题】依当事人双方是否互负对待给付义务为标准,合同可以分为( )。
【多选题】Ethical issues on gene therapy include:
A.
How can "good" and "bad" uses of gene therapy be distinguished?
B.
What actually happens when things go wrong?
C.
Who decides which traits are normal and which constitute a disability or disorder (deciding proper indications)?
D.
Do we have enough knowledge to make the right decisions?
【单选题】One day, our dreams will()reality.
【单选题】()是市场营销4P组合的核心,是其他三项策略的基础。
【单选题】— Chongqing is really a beautiful city and there’re many places of interest. — So it is. Why not stay here for _______ two days.