废水生物处理最主要优点是（）A、经济B、高效C、无害化D、管理容_爱下问搜题

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问题单项选择题

废水生物处理最主要优点是（）

A、经济

B、高效

C、无害化

D、管理容易

答案

参考答案：C

阅读理解

请认真阅读下面表格，根据内容判断句子正(√)误(×)。

Title (题目)	Uncle Tom's farm
Animals	thirty-five sheep, fifty goats, two dogs, thirteen geese.
Vegetables	carrots, fresh cucumbers, big potatoes, two bags of onions.
Fruits	apples, pears, they're fresh and big.
Uncle Tom	He likes his farm very much.

( ) 1. This is Uncle John's farm.
( ) 2. There are thirty-five goats, two dogs there.
( ) 3. There are two bags of carrots.
( ) 4. The fruits are fresh but small.
( ) 5. Uncle Tom likes his farm very much.

判断题

任何程序和数据都是以文件的形式存放在计算机的外存储器上的。（）