盆腔子宫内膜异位症最常见的部位是（）
A.卵巢
B.阔韧带
C.宫骶韧带
D.输卵管
E.子宫直肠陷凹
参考答案：A
电阻的大小与（）无关。
A、与电流有关
B、材料有关
C、与长度有关
D、与横截面有关
Their school looks quite different from _______ ten years ago.
A．what it was
B．that it was
C．what was it
D．that was it
