除正常月经外,引起 * * 出血最多见的原因()
A.卵巢内分泌功能失调
B.与妊娠有关的子宫出血
C.生殖器炎症
D.生殖器肿瘤
E.损伤、异物和药物
参考答案:A
在数字1001011011中,“0”出现的频数是( ),频率是( ).
If you let me make a choice ______ Jane and Anne, I would say Jane is______one to be my assistant.
A.between; the best
B.from; the best
C.between; the better
D.from; the better