Suppose the experiment involving O2 and the 6 L vessel had been repeated, except at a room
A. less, because pressure is directly proportional to temperature.
B. less, because pressure is inversely proportional to temperature.
C. greater, because pressure is directly proportional to temperature.
D. greater, because pressure is inversely proportional to temperature.
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在数据的收集处理中,应该做到保证数据的()、真实性和完整性。
购入的中药材应该具有详细的记录,包装上必须有明显标签,必须注明的是()
A. 品名
B. 规格
C. 数量
D. 产地
E. 来源
F. 采收(初加工)日期
G. 有效期
H. 批号
我们日常生活中经常运用的类比有()。
a.同中求异
b.将心比心
c.老吾老以及人之老
d.攀比
e.己所不欲,勿施于人
Suppose there had been no precipitation during 1 entire month of the 12-month period. Based on the information provided, during that month there would have been:
A. significant wet deposition of all 4 substances.
B. significant wet deposition of Cu2+ and Zn2+, but no wet deposition of Cl- and SO4 2-.
C. no wet deposition of any of the 4 substances.
D. no wet deposition of Cu2+ and Zn2+, but significant wet deposition of Cl- and SO4 2-.