为什么中央泵房水仓外还要设置沉淀池?
参考答案:
依靠水仓澄清含有大量悬浮物质和固体颗粒的矿井水,往往不能达到令人满意的效果,在中央泵房水仓外设置沉淀池可起到二级沉淀的目的。
读某群岛及附近海域部分等深线示意图,回答问题。
小题1:图示群岛( )
A.位于亚欧板块上
B.位于印度洋板块上
C.位于太平洋板块上
D.是太平洋板块和印度洋板块的界线小题2:Q岛的气候类型和农业地域类型分别是( )
①热带雨林气候
②热带草原气候
③热带季风气候
④热带迁移农业
⑤水稻种植业
⑥商品谷物农业
A.①④
B.②⑤
C.③⑥
D.③⑤
An analyst does research about the accrual method. Which of the following is most likely to record warranty expense for products a company sells in the period of the sale under to the matching principle()
A. Warranty expense is accrued only.
B. Warranty expense is estimated only.
C. Warranty expense is both accrued and estimated.