《素问·上古天真论》提出在生理方面,女子的生长、发育和生殖规律的年龄指()
A.7~64岁
B.7~14岁
C.7~2l岁
D.7~49岁
E.7~42岁
参考答案:D
甲数是250,乙数是2,求甲乙两数的积是多少?
— Where is Mr Green?
— He ____ Jane with her English in the teachers' office. [ ]
A. has helped
B. is helping
C. helps
D. will help