按整个滤层计，单位体积滤料中所截留的杂质量称为（），单位以g/_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

按整个滤层计，单位体积滤料中所截留的杂质量称为（），单位以g/cm³或kg/m³计

A.单位体积上的质量

B.滤池速度

C.冲洗强度

D.滤层含污能力

答案

参考答案：D

单项选择题

胃肠消化功能障碍大便为()

A．大便糊状，灰色且带油彩

B．大便次数多量少，带粘液或脓血

C．糊状、带泡沫便，深褐色希恶臭

D．便中大量粘液

E．大便次数少量多，稀薄而臭

填空题

CONVERSATION 2 (Questions 5-8)

The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.

CONVERSATION 2 (Questions 5-8)

The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.