牙槽嵴修整术适宜时间应在拔牙后()
A.2~3周
B.4~5周
C.6~7周
D.7~8周
E.8~12周
参考答案:E
Jim has to make his bed and _____ his bedroom on Sundays. [ ]
A. to clean
B. clean
C. cleans
D. cleaning
按规定,我国的中央级金融租赁公司由( )监管。
A.中国人民银行
B.中 * * 银行
C.中国政策性银行
D.中国人民银行省级分行