75. Acid rain is defined as when the pH value of rain water is below ？ (A) 4.5 (B) 5.0 (C) 5.7 (D) 6.0

75. Acid rain is defined as when the pH value of rain water is below ？
(A) 4.5
(B) 5.0
(C) 5.7
(D) 6.0

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統計： A(4), B(62), C(9), D(4), E(0) #2319639

詳解 (共 1 筆)

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B1 · 2021/08/07

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57. About the treatment of COVID-19 infection, which of the following statement is not true？ (A) There has so far been no approval drugs against COVID-19 infection. (B) Vaccine for influenza can apply to cure COVID-19 infection. (C) Clinical trials are applied to evaluate direct treatment. (D) Infected patients get supportive treatments in hospital.

75. Acid rain is defined as when the pH value of rain water is below ？
(A) 4.5
(B) 5.0
(C) 5.7
(D) 6.0

詳解 (共 1 筆)

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