A. Halley’s Comet can be seen from Earth with naked eyes
B. Halley’s prediction of the comet’s re-appearance in 1758 was right
C. He observed the comet of 1682 and named it “Helley’s Comet.”
D. The comets of 1531, 1607 and 1682 were, in fact, the same comet
C
Đáp án C
Qua đoạn số 5 ta thấy năm 1682 Halley đã quan sát thấy sao chổi (a comet he had observed in 1682), tuy
nhiên ông chỉ đặt tên là “Halley’s Comet” vào năm 1758 qua câu “Halley predicted that the comet would come again
in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth”
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