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【简答题】
用系统命名法命名下列化合物化合物(1) (2)
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皮皮学刷刷变学霸
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【简答题】根据问句选答语。 ( ) 1. What is Christmas? ( ) 2. Why is Christmas special? ( ) 3. Who is he? ( ) 4. Do they bring any gifts? ( ) 5. When is Christmas? A. He is Santa. B. It's December twe...
【单选题】What is special about the solar panels used in the Wattway?
A.
They are made from cheap materials.
B.
They are only about half an inch thick.
C.
They can be laid right on top of existing highways.
D.
They can stand the wear and tear of natural elements.
【简答题】Please use the Minterms to express following formula:
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