問題詳情：
光垂直入*到平面鏡上，反*角爲····································································· ( )
A.0° B.30° C.45° D.90°
【回答】
A
知識點：未分類
題型：未分類
![下列整數中，與最接近的是···········································...]( "下列整數中，與最接近的是···········································...")
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在下列幾個實例中，運用的科學方法相同的是···································...![一本物理課本的質量約爲············································...]( "一本物理課本的質量約爲············································...")
一本物理課本的質量約爲············································...![能體現物質特*的物理量是···········································...]( "能體現物質特*的物理量是···········································...")
能體現物質特*的物理量是···········································...![物質的分子具有分子動能是由於·········································...]( "物質的分子具有分子動能是由於·········································...")
物質的分子具有分子動能是由於·········································...![下列圖形中，不是軸對稱圖形的是········································...]( "下列圖形中，不是軸對稱圖形的是········································...")
下列圖形中，不是軸對稱圖形的是········································...![如圖，由相同的小正方體搭成的幾何體的主視圖是·································...]( "如圖，由相同的小正方體搭成的幾何體的主視圖是·································...")
如圖，由相同的小正方體搭成的幾何體的主視圖是·································...
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