阿摩線上測驗
10. A black hole is created by the _____ of a dead star into a point perhaps no
larger than a marble.
(A) construction
(B) compression
(C) concretion
(D) collapse
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統計： A(53), B(26), C(14), D(71), E(0) #1565429
統計： A(53), B(26), C(14), D(71), E(0) #1565429
