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【多选题】
能引起双眼持久性视力突然下降的因素有( )A.
癔病
B.
甲醇中毒
C.
急性大出血
D.
伪盲
E.
Leber 视神经病变
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反馈参考答案：
举一反三
【单选题】--George and Lucy got married last week. Did you go to their wedding ? -- No, I . Did they have a big wedding ?
A.
wasn't invited
B.
have not been invited
C.
hadn't been invited
D.
didn't invite
【简答题】当二次侧补偿时,旋转变压器二次侧的直轴分量之和随转子转角()变化
【简答题】— George and Lucy got married last week. Did you go to their wedding? — No. I ____. Did they have a big wedding? A．was not invited B．have not been invited C．hadn’t been invited D．didn’t invite
【单选题】-George and Lucy got married last week. Did you go to their wedding? _NO,I__. Did they have a big wedding?
A.
wasn't invited
B.
has not been invited
C.
hadn't been invited
D.
didn't invite
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