【单选题】在地震设防区设置伸缩缝1时,必须满足( )设置的要求。
【单选题】在地震地区设置伸缩缝时,必须满足( )的要求。
【简答题】阅读理解。 I have six baskets. Three are big.Three are small.I have some pears and some oranges. I put three pears in every(每一) small basket, and I put three oranges in every big basket and one orange in e...