计算392×67时,可以估计到积大约是______位数.
392×67,可以把392看作400,76看作70进行估算,即392×67≈28000;
故答案为:五.
Chinese Premier Wen Jiabao, in_________ interview with Hong Kong reporters on April 13, said that Chinese economy in ________ first quarter showed signs of better than expected positive changes.
A.an, 不填
B.the, the
C.the, a
D.an, the
当汽油的价格上升时,对小汽车的需求量将()。
A.减少
B.保持不变
C.增加