154. The truth is that the earth keeps _____ movement around the sun.
(A)normal
(B)frequent
(C)constant
(D)steady

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統計： A(3), B(17), C(37), D(12), E(0) #1592364

詳解 (共 1 筆)

#2289808
（A）正常（B）頻繁（C）恆定（D）穩定...
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