下图中所示实验操作不正确的是请选择DCBA/y'h5|;c9@4l({)n;M(i6}'T;i7D*F8H
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A．读取液体体积)n;M(i6}'T;i7D*F8H
B．称量NaOH固体)n;M(i6}'T;i7D*F8H
C．熄灭酒精灯)n;M(i6}'T;i7D*F8H
D．检查装置的气密性)n;M(i6}'T;i7D*F8H
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