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【单选题】
I wonder how many years ago _______.A.
did you father retire
B.
your father retired
C.
has your father retired
D.
your father has retired
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】银行记账日至发卡银行规定的到期日之间为贷记卡的免息还款期，免息还款期最长为（ ）。
【单选题】Papousek noticed in his studies that a baby___．
A.
would make learned responses when it saw the milk
B.
would carry out learned movements when it had enough to drink
C.
would continue the simple movements when it had enough to drink
D.
would turn its head to right or left when it had enough to drink
【单选题】_________是属于正确的IP地址
A.
110.213.12.256
B.
110.213.200.1
C.
110.213.300.1
D.
110.273.200.254
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