皮皮学，免费搜题
登录
搜题
【多选题】
污水中含有多种有机成分、性质各不相同,下列说法中哪几项是错误的?A.
污水中碳水化合物和脂肪均属可生化降解有机物，对微生物无毒害与抑制作用
B.
有机酸、碱均属可生化降解有机物，但对微生物有毒害与抑制作用
C.
污水中酚类均属难生化降解有机物，对微生物无毒害与抑制作用
D.
有机磷农药属难生化降解有机物，并对微生物有毒害与抑制作用
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Before the supper, my morn asked me to lay the table.
A.
clean
B.
dust
C.
set
D.
move
【单选题】sallied forth at morn (paragraph 3)
A.
went back and forth
B.
sailed by taking a boat
C.
rushed forth toward
D.
left home in the morning
【单选题】My pain__________ apparent the moment I walked into the morn, for the first man I met asked sympathetical-ly: 'Are you feeling all right?'
A.
must be
B.
must have been
C.
had been
D.
had to be
【单选题】The job seeker filled in the application form, but she didnt know which office room______.
A.
to be sent to
B.
to send it to
C.
to send it
D.
to have it sent to
【简答题】句型转换。(共15分,每小题3分) 1.I have a cold .(就画线部分提问) you? 2. My father does exercise every morning.(用be going to改写句子) My father is ________ exercise tomorrow morning. 3. They have to get up early every day.（改...
【单选题】The room was filled smoke after the big fire and people had to stay outside.
A.
of
B.
with
C.
in
D.
for
相关题目：
参考解析：
知识点：
题目纠错 0
发布
