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【单选题】
污泥的浓缩方式有重力浓缩法、（）和机械浓缩法。A.
静水压力浓缩法
B.
气浮浓缩法
C.
吹脱浓缩法
D.
板框浓缩法
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反馈参考答案：
举一反三
【单选题】下列有关膜的叙述，错误的是（）
A.
细胞膜主要由蛋白质分子和磷脂分子组成
B.
核膜和内质网膜在结构上有密切联系
C.
线粒体膜和叶绿体中的蛋白质分子是相同的
D.
细胞膜中的大多数蛋膜白质分子和磷脂分子不是静止的
【简答题】a willingness to keep checking off priorities. This is particularly true of self-employed people
【单选题】The interviewee is not self-employed mainly because______.
A.
his wife likes him to work for a firm
B.
he prefers working for the government
C.
self-employed work is very demanding
D.
self-employed work is sometimes insecure
【简答题】A recent body of economic literature supports the notion that the self-employed are more satisfied with their jobs than are employees. The research finds this to be true across most OECD countries, wi...
【单选题】下列有关膜的叙述,错误的是
A.
细胞膜主要由脂质和蛋白质组成
B.
细胞膜中还有少量的糖类
C.
线粒体膜和叶绿体膜中的蛋白质分子是相同的
D.
在组成细胞膜的脂质中，磷脂最丰富
【单选题】The man does not plan to be self-employed mainly because
A.
his wife likes him to work for a firm.
B.
he prefers working for the government.
C.
self-employed work is very demanding.
D.
self-employed work is sometimes insecure.
【单选题】The interviewee is not self-employed mainly because
A.
her husband likes her to work for a firm.
B.
she prefers working for the government.
C.
self-employed work is very demanding.
D.
self-employed work is sometimes insecure.
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