宋代对后世影响较大、比较全面的妇产科专著是:()
A.《产育宝庆集》
B.《十产论》
C.《坤元是保》
D.《女科百问》
E.《妇人大全良方》
参考答案:E
— I am sorry to have________much of your spare time.
— That's OK, and I am glad to help you.[ ]
A. taken up
B. taken on
C. taken off
D. taken in
简述马克思主义政党的根本宗旨和组织原则?