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【简答题】
提高哺乳仔猪成活率的措施?
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】To make a good travel plan, which is not the key factor?
A.
Think about where to go
B.
Think about when to go Think about when to go
C.
Think about travel budget
D.
Buy some new clothes before travel
【单选题】If you want to travel around the world,you should make a careful plan ______________.
A.
in short
B.
in advance
C.
in time
D.
in schedule
【简答题】有效应用固定比例强化的原则有哪些？
【单选题】To make a good travel plan, which is not the key factor?
A.
Think about where to go
B.
Think about when to go
C.
Think about travel budget
D.
Buy some new clothes before travel
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