2. How much TOTAL me of ice-c Id 0.1M CaCl2 will Bob use while preparing competent ceils? (3%)
(A) 22 mL
(B) 44 mL
(C) 66 mL
(D) 88 mL

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統計: A(0), B(1), C(0), D(1), E(0) #2918311