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【单选题】
When the author needed a post-office box, ______.A.
he bad to put his name on a waiting list
B.
he wrote the postmaster a note of appreciation
C.
many people had applied for post-office boxes before him
D.
he asked the postmaster to make one for him
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反馈参考答案：
举一反三
【简答题】通过文件的学习, 请写出印象最深的5种。另外你还知道哪些文章没有提及的设备?
【单选题】波峰焊机的正确工艺流程是( )
A.
波峰焊接 预热 喷助焊剂 冷却
B.
预热 波峰焊接 喷助焊剂 冷却
C.
喷助焊剂 预热 波峰焊接 冷却
D.
波峰焊接 喷助焊剂 预热 冷却
【单选题】The old lady was suffering from the empty nest syndrome for so long that she felt like to find someone she could talk to her.
A.
to find someone to talk
B.
finding someone to talk
C.
to find someone to talk to
D.
finding someone to talk to
【简答题】迄今为止我国仍没有一部完整的（ ）。
【单选题】_______at his son, the old lady felt _______.
A.
surprised ,disappointed
B.
surprised , disappointing
C.
surprising, disappointing
D.
surprising, disappointed
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