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【多选题】
《禁止进口货物目录》(第三、四、五批)所涉及的是对环境有污染的固体废物类,包括A.
城市垃圾、医疗废物
B.
含铅汽车淤渣
C.
动物尸体
D.
土壤
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】理想的安全评价分为 。
【简答题】命题p:三角形的内角和等于180 ,则
【多选题】Which three IP multicast group concepts are true?（）
A.
If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
B.
A router does not have to be a member of a multicast group to receive multicast data.
C.
A router must be a member of a multicast group to send to the group.
D.
A router does not have to be a member of a multicast group to send to the group.
E.
If a packet is sent to a multicast group address, all members of the multicast group will rece ive it.
F.
A router must be a member of a multicast group to receive multicast data.
【单选题】In the group discussion, they thought up three different __________to solving the environmental problem.
A.
approaches
B.
means
C.
ways
D.
methods
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