We will get back here(at two o'clock).(括号里提问）______________will weget back here

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• We will get back here(at two o'clock).(括号里提问）______________will weget back here
• We will get back here(at two o'clock).(括号里提问）______________will weget back here
• 1.They are going to visit our school this weekend.(对 visit our school提问)AOne day we invited some friends to dinner.When it was about six o’clock,my wife found that we had little bread.So she asked our five-year-old daughter,Kathy,to buy some.“Here’s a dollar,” my wife said,“Get two loaves of bread,if they have it.If they don’t have it,get anything.But hurry!”Kathy left in a hurry,and we waited and waited.By a quarter past six,all the friends arrived.B
• 一个挂钟的分针长20厘米,经过30分钟后,分针的尖端所走的路程是多少厘米?经过45分钟呢?
• 甲、乙两地相距S千米，汽车从甲地匀速行驶到乙地，速度不得超过C千米/小时，已知汽车每小时的运输成本（以元为单位）由可变部分与固定部分组成：可变部分与速度V（千米/小时）的平方成正比且比例系数为b，固定成本为a元．（1）把全程运输成本y（元）表示为速度v（千米/小时）的函数，并指出这个函数的定义域；（2）为了使全程运输成本最小，汽车应以多大速度行驶？