原子结构的第三壳层最多容纳电子数是()
A.2个
B.8个
C.18个
D.32个
E.50个
参考答案:C
相同为“0”不同为“1”它的逻辑关系是()
A.或逻辑
B.与逻辑
C.异或逻辑
D.同或逻辑
I wandered lonely as a cloud That floats on high o’er vales and hills, When all at once I saw a crowd,
A host, of golden daffodils;Beside the lake, beneath the trees,Fluttering and dancing in the breeze.Questions:A. Who is the authorB. What does "A host, of" meanC. Give a short explanation of the quotation.