增值税纳税人以一个月为期纳税的，自期满之日起( )日内申报纳税。
A．3
B．5
C．7
D．10
参考答案：D
Kate is said ________ abroad, but I don’t know what country he studied in.
A．to have studied
B．to study
C．to be studying
D．to have been studying
经直肠超声检查，主要是观察的病变（）
A.卵巢
B.前列腺
C.肠
D.膀胱
E.子宫
