GMP对管道、照明设施、风口和其它公用设施的设计和安装有什么要求？
参考答案：
应避免出现不易清洁的部位，应尽可能在生产区外部对其进行维护。
求
Mark Twin wrote many popular novels in his life, ________ The Adventures of Tom Sawyer is a best example.
A．of which
B．what
C．whose
D．which
