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【单选题】
关于环境保护标准实施监督方式的说法，下列表述中不正确的是( )。A.
可分为自我监督和管理性监督
B.
自我监督不能由排污单位及其主管部门承担
C.
管理性监督主要由各级环境保护行政主管部门负责，其基本出发点是“达标”
D.
管理性监督所采用的手段一般为监督性监测和检查、抽查
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举一反三
【单选题】在Burkitt淋巴瘤组织中,一种包含类似免疫球蛋白(Ig)重链的氨基端和未知羧基末端的杂交蛋白表达的增加。下面哪个选项最能解释这种现象?
A.
染色体易位将一个Ig重链与一个原癌基因连接在一起
B.
含有原癌基因的染色体片段复制
C.
染色体易位涉及具有Ig重链的片段
D.
含原癌基因的染色体片段缺失
E.
含肿瘤抑制基因的染色体片段缺失
【单选题】According to the speaker, why did wolves attack humans?
A.
They had no other food.
B.
They had lost their homes.
C.
They naturally hunted all creatures.
D.
To protect their young.
【单选题】Speaker. A: It seems to be clearing up. Speaker B:______
A.
We haven't had rain for a long time.
B.
It makes a change, doesn't it?
C.
Quite warm for this time of the year.
D.
I hope there will be no storm.
【单选题】The speaker had such a nightmare because she ___ _
A.
failed many exams
B.
was under great pressure
C.
had a difficult relationship with the professor
【单选题】Of the two lectures, the first was by far _____, partly because the speaker had such a dynamic style.
A.
the best
B.
better
C.
the better
D.
much better
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