阿摩線上測驗
4. I studied calculus when I was in senior high school, but I have forgotten everything. I cannot __ much of it. I need to study it again.
(A) combine
(C) recall
(B) assess
(D) extend
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統計： A(0), B(1), C(0), D(0), E(0) #3370804
統計： A(0), B(1), C(0), D(0), E(0) #3370804
