38. How is a black hole formed?
(A) When a star explodes during a supernova.
(B) When a star gets too close to another star.
(C) When a star absorbs too much light.
(D) When a star collides with the Sun.
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統計: A(95), B(4), C(2), D(4), E(0) #3251788
統計: A(95), B(4), C(2), D(4), E(0) #3251788