单项选择题


A．calling
B．calls
C．call
D．called
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单项选择题
A．ratherB．otherC．moreD．less
A．rather
B．other
C．more
D．less
单项选择题
Which of the following is true of the idea of degassing the lake
A．h was a good idea.
B．Some scientists veto it.
C．It's impossible.
D．Some farmers still venture back with their livestock.
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