rational number被翻译为()
A、自然数
B、分数
C、比数
D、有理数
参考答案:D
My father has been working on this farm for ________. [ ]
A. all this five years
B. whole this five years
C. these all five years
D. the whole five years
臀大肌可使髋关节()
A.前屈
B.旋外
C.旋内
D.外展
E.内收