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【多选题】
如下关于理想气体密度的说法，正确的是（）A.
温度和压强一定时，摩尔质量越大的气体密度越大
B.
同种气体，其在常温常压下的密度小于其在标准状态下的密度
C.
理想气体的密度与其压强成正比
D.
计算理想气体密度可能要用到通用气体常数，其值为 8.314kJ/(mol·K)
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举一反三
【简答题】Pressed us to her with the serious way she read, to shove us away at just the moment, like dimwits, we seemed about to understand.
【单选题】The moment seemed to ___ out endlessly, his gaze traveling across her face, her neck, her shoulder, returning to her eyes.
A.
stretch
B.
expand
C.
skip
D.
slip
【单选题】The moment seemed to_______out endlessly, his gaze travelling across her face, her neck, her shoulder, and returning to her eyes.
A.
stretch
B.
expand
C.
skip
D.
slip
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