负责对临床试验用的所有药品作适当的包装标签,并标明临床试验专用的是
A.药品注册管理工作B.药品注册申请人C.药品注册D.药品注册申请E.药品补充申请
参考答案:B
A.The UN Secretary-General had cancelled his trip to Europe.
B.The UN Secretary-General would visit Asia at a later date.
C.The UN Secretary-General would discuss the UN budget with the US.
D.The UN Secretary-General had withheld the debate over the budget.
细胞外基质的基本成分主要有胶原蛋白、弹性蛋白、()、层粘连蛋白和纤粘连蛋白等。