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If s/t=2,then the Value of which of the following can be determined?[img]2022m1
If s/t=2,then the Value of which of the following can be determined?[img]2022m1
游客
2024-01-13
31
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问题
If s/t=2,then the Value of which of the following can be determined?
选项
A、Ⅰ only
B、Ⅲ only
C、Ⅰ and Ⅱ only
D、Ⅱ and Ⅲ only
E、Ⅰ,Ⅱ,and Ⅲ
答案
C
解析
Substitute 2t for s in the expressions given in I, II, and III.
√ I. Value can be determined: 2t/s = 2t/2t = 1
√ II. Value can be determined:
× Ⅲ. Value cannot be determined:
equals 0 if t = 1, and equals 1/3 if t = 2
The correct answer is C.
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