This monument was built in honor of the scientist who was believed ______ the first telephone.

A．to invent

B．to have been invented

C．to have invented

D．having been invented

对（），公司应当明确并用文件形式规定其责任、权力及相互关系。Ⅰ．管理涉及安全和防止污染工作的所有人员；Ⅱ．从事涉及安全和防止污染工作的所有人员；Ⅲ．审核涉及安全和防止污染工作的所有人员。

A.Ⅰ

B.Ⅰ、Ⅱ

C.Ⅰ、Ⅲ

D.Ⅰ～Ⅲ