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【单选题】
前置胎盘最安全可靠的诊断方法是A.
阴道内诊检查
B.
X线腹部平片
C.
下腹部听诊胎盘杂音
D.
B超检查
E.
放射性同位素扫描
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The door may fall down any time. We will have it_______. [ ]
A.
fixed
B.
built
C.
made
D.
painted
【单选题】If the dog hadn't woken us, we wouldn't have noticed the fire and it _______ to the house next door. [ ]
A.
could spread
B.
should have spread
C.
would spread
D.
might have spread
【简答题】光敏二极管是一中利用 单向导电性的结型光电器件。
【简答题】四级考试有哪几项题型
【简答题】We ________ our breakfast when an old man came to the door. A) just have had B) have just had C) just had D) had just had
【单选题】We’ll have to find someone to have a look at the door. It won’t _________.
A.
shut
B.
be shut
C.
be shutting
D.
shutting
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