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搜题
【单选题】
有机磷杀虫药的中毒机制主要是抑制下列哪种酶的活性
A.
过氧化氢酶
B.
肌酸激酶
C.
谷丙转氨酶
D.
胆碱酯酶
E.
乳酸脱氢酶
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【多选题】建筑的物质实体一般由( )组合构成。
A.
承重结构
B.
围护结构
C.
饰面装修
D.
附属部件
【单选题】Li Lei didn't come to school today. What _______ to him? [     ]
A.
was happened
B.
happened
C.
is happened
D.
happening
【多选题】建筑的物质实体一般由( )组合构成。
A.
承重结构
B.
饰面装修
C.
围护结构
D.
附属部件
【单选题】矿物表面润湿接触角与矿物的可浮性关系,接触角小,则矿物的(),难浮。
A.
亲水性弱
B.
疏水性强
C.
亲水性强
D.
疏水性弱
【单选题】I don't know____yesterday. [     ]
A.
what he happened
B.
what did he happen
C.
what happened to him
D.
what has happened
【简答题】计算机硬盘正在工作时应该特别注意避免____?
【单选题】I didn't know what ____ to her last night. [     ]
A.
was happened
B.
happening
C.
happened
D.
was happen
【单选题】I don’t know _____.
A.
what happened to him
B.
what did he happen
C.
what he happened
D.
what was the matter
【多选题】建筑的物质实体一般由()组合构成。
A.
附属部件
B.
承重结构
C.
饰面装修
D.
围护结构
【简答题】建筑实体一般由( )( )( )( )组成构成
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