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【简答题】
品种混杂退化的原因有哪些?
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反馈参考答案：
举一反三
【简答题】雪纳瑞犬按体型大小分为 、 、 三种类型。
【单选题】Hi, Mark. How was the musical evening? — Excellent! Ales and Andy performed _________ and they won the firs prize.
A.
skillfully
B.
commonly
C.
willingly
D.
nervously
【简答题】There are obvious benefits in allowing each student to go at his own ____.
【单选题】-- Hi, Lucy. We won the match yesterday. --_________!
A.
Congratulations
B.
Excuse me
C.
No problem
D.
Never mind
【单选题】The two kind of benefits are _______________________.
A.
supplementary benefits and optional benefits
B.
incentive and optional benefits
C.
mandatory benefits and workers’ compensation
D.
mandatory benefits and optional benefits
【单选题】— Hi, Mark. How was the musical evening? — Excellent! Ales and Andy performed _____ and they won the first prize. [ ]
A.
skillfully
B.
commonly
C.
willingly
D.
nervously
【单选题】There are obvious benefits in allowing each student to go at his own ______.
A.
pace
B.
speed
C.
time
D.
walk
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