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【多选题】
下面哪些措施，有利于提高木结构墙体的耐火极限（ ）。
A.
增加石膏板厚度
B.
使用防火石膏板
C.
提升填充材料的防火性能
D.
以上措施都可以
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【单选题】The walls of the alveoli are very thin. There is only _______ cells with cubic secretory cells.
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【判断题】Cells with a single set of chromosomes are called diploid.
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【单选题】Diploid cells are cells with ______ chromosomes.
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a single set of
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circular
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【单选题】A single cell within a culture of freshly isolated cardiac muscle cells is injected with a fluorescent dye that cannot cross cell membranes. Within minutes, several adjacent cells become fluorescent. ...
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相关题目：
【单选题】在工艺及仪表流程图中，设备需标注（       ）和（      ），并在流程线的上方或下方靠近设备示意图的位置注成一排。
A.
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【单选题】The walls of the alveoli are very thin. There is only _______ cells with cubic secretory cells.
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B.
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a single set of
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many sets of
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【单选题】A single cell within a culture of freshly isolated cardiac muscle cells is injected with a fluorescent dye that cannot cross cell membranes. Within minutes, several adjacent cells become fluorescent. ...
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B.
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IP3 receptors
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