税收票证必须（）填开。
A.分纳税人、分次
B.几个纳税人合开
C.同一纳税人几次缴税合开
D.同一纳税人同一次不同所属时期合开
参考答案：A
以下哪项不会引起性发育迟缓
A．下丘脑病变
B．垂体病变
C．卵巢发育不良
D．处女膜病变
E．甲状腺功能不良
Jim with his parents _____ abroad. They _____ back in two weeks. [ ]
A. have gone; will come
B. has gone; will come
C. have been to; have come
D. has been; come
