单选题
"You are preparing to contain an oil spill. You must first receive approval from the Federal On-Scene Coordinator (OSC) prior to ().
A
A、 employing a boom
B
B、 using suction equipment
C
C、 applying chemical agents
D
D、 deploying skimmers
答案解析
正确答案:C
解析:
You are preparing to contain an oil spill. You must first receive approval from the Federal
On-Scene Coordinator (OSC) prior to applying chemical agents
On-Scene Coordinator (OSC) prior to applying chemical agents
