发布时间:2025-01-28 13:40:03
解:
1、原计划生产时间=7200÷720=10(天)
2、a. 实际帐篷数量=7200×(1+20%)=8640(顶)
b. 实际每天生产数量=720×2=1440(顶)
c.实际生产时间=8640÷1440=6(天)
计划生产时间-实际生产时间=4(天)
答:比原计划提前4天完成任务.
中学化学实验中温度计的使用分哪三种情况以及哪些实验需要温度计
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