【单选题】依( )为标准,合同可分为双务合同与单务合同。
【多选题】Major ethical issues with brain banking are:
A.
the rights of the persons donating their tissue, the obligations of the brain bank with regard to respect and observance of such rights
B.
informed consent, confidentiality
C.
protection of personal data, collections of human biologic material and their management
D.
transparency & accountability within the organization of a brain bank
【单选题】There're so many kinds of CD players on sale that I can't make up my mind __________ to buy.
【单选题】--Beijing is really an old city and there're many places of interest. --So it is. Why not stay here for two days?
【简答题】危险化学品零售业务的店面经营面积(不含库房)应不少于( ) m2,零售业务的店面应与繁华商业区或居住人口稠密区保持( )m以上距离。
【单选题】危险化学品零售业务的店面经营面积(不含库房)应不少于( )m2,零售业务的店面应与繁华商业区或居住人口稠密区保持( )m以上距离。
【判断题】常温下,浓硝酸可以用铝槽贮存,说明铝与浓硝酸不反应。 ( )A. 对 B. 错