兔的斯氏艾美耳球虫是()
A.线虫
B.绦虫
C.吸虫
D.原虫
E.蠕虫
参考答案:D
The lady thinks her husband is very______ because he is very honest and positive. [ ]
A. nosy
B. generous
C. reliable
D. experienced
上述选项中,决定轨道量子数的是()。
A.主量子数
B.角量子数
C.磁量子数
D.自旋量子数
E.电子壳层