Cl2是一种能溶于水的气体,其密度比空气大,则Cl2的收集方法应是 [ ]
A. 排水法
B. 向上排空气法和排水法
C. 向上排空气法
D. 向下排空气法
答案:C
Would you please speak slowly? I can hardly _____ you. [ ]
A. talk with
B. agree with
C. follow
D. hear with
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