皮皮学，免费搜题
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搜题
【单选题】
物质、能量、信息进入系统的过程,是系统的A.
输入功能
B.
转换功能
C.
输出功能
D.
反馈功能
E.
处理功能
拍照语音搜题，微信中搜索"皮皮学"使用
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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】My wallet is nowhere to be found; ______ while I was on the bus.
A.
should I dropped it
B.
I must have dropped it
C.
I ought to have dropped it
D.
I had been dropping
【简答题】根据开发河段的自然条件之不同，河川水能资源开发的基本方式包括 、引水式和混合式三种。
【单选题】I__________my wallet when I was shopping in the store.
A.
must have dropped
B.
should have dropped
C.
could drop
D.
ought to have dropped
【多选题】房地产开发项目建设用地使用权的取得，可采取行政划拨方式，包括（）。
A.
国家机关用地
B.
国家重点扶持的能源、水利等项目用地
C.
商业用房建设用地
D.
城市基础设施用地和公益用地
E.
经济适用住房建设用地
【单选题】Give the books to __________ needs them for the English class and the writing class.
A.
whomever
B.
whom
C.
who
D.
whoever
【单选题】My wallet is nowhere to be found. I ______ when I was on the bus.
A.
must have dropped it
B.
must drop it
C.
should have dropped it
D.
ought to have dropped it:
【单选题】You are in the English class there, right?
A.
No, I am not a waiter!
B.
In the English class? Yes, that is right.
【单选题】In English class we must ___________ English. Please ___________ it ___________ English. [ ]
A.
speak, say, in
B.
talk, tell, with
C.
say, speak, in
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