Large quantities of water , as well as some other timely help including a medical team, _____  since the serious drought hit Yunnan Province.

A．has offered

B．had been offered

C．have been offered

D．is offered

烟花爆竹生产企业应当采取的职业危害预防措施包括( )。

A．为从业人员配备符合国家标准或行业标准的劳动防护用品

B．对重大危险源进行检测、评估，采取监控措施

C．为从业人员定期进行健康检查

D．对工作场所做好通风除尘工作

E．在安全区内设立独立的操作人员更衣室