单项选择题
吗啡属于哪一类化合物（ ）
A．中性化合物
B．酸性化合物
C．碱性化合物
D．两性化合物
吗啡属于哪一类化合物（ ）
A．中性化合物
B．酸性化合物
C．碱性化合物
D．两性化合物
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单项选择题
The governments, environmental protection departments and enterprises of China have legal responsibilities and obligations for the emergency management of environmental emergencies. The legal responsibilities of the governments do not include ( )
The governments, environmental protection departments and enterprises of China have legal responsibilities and obligations for the emergency management of environmental emergencies. The legal responsibilities of the governments do not include ( )
A．Timely report to relevant companies involved in environmental emergencies
B．Carry out monitoring and early warning, and take effective emergency response measures when environmental emergencies occur
C．Post-evaluation and reconstruction
D．Develop emergency plan, establish emergency training and carry out emergency drill