— How many people died in the earthquake? — It's hard to say _____ people, I think. [ ]
A.
Thousand of
B.
Thousands of
C.
Two thousands
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皮皮学刷刷变学霸
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【判断题】The settling time is the time required for the response curve to reach and stay within a range about the final value of size specified by absolute percentage of the final value (usually 2% or 5%). The...