本课配套习题挑战模式1/6
| A: 明媚的月亮 | 
| B: 太阳 | 
| C: 荧火虫 | 
| D: 煤油灯 | 
- 提示1:IOato+WcqOWPkeWFieeahOeJqeS9k+WPq+WBmuWFiea6kA==
 - 提示2:IOaciOS6ruS4jeiDveWPkeWFie+8jOWPquiDveWPjeWwhOWkqumYs+WFiQ==
 - 答案:QQ==
							PGRpdj7mnIjkuq7kuI3og73lj5HlhYnvvIzlj6rog73lj43lsITlpKrpmLPlhYnvvIzmiYDku6XmnIjkuq7kuI3mmK/lhYnmupA8L2Rpdj4=
 
本课配套习题挑战模式2/6
| A: 地上的雪 | 
| B: 月亮 | 
| C: 通电的探照灯 | 
| D: 放电影时所看到的银幕 | 
- 提示1:IOato+WcqOWPkeWFieeahOeJqeS9k+WPq+WBmuWFiea6kA==
 - 提示2:IOaciOS6ruOAgembquOAgemTtuW5leiHqui6q+mDveS4jeiDveWPkeWFie+8jOWPquiDveWPjeWwhOWFtuS7lueJqeS9k+WPkeWHuueahOWFiQ==
 - 答案:Qw==
							PGRpdj7oh6rouqvpg73kuI3og73lj5HlhYnvvIzlj6rog73lj43lsITlhbbku5bniankvZPlj5Hlh7rnmoTlhYnnmoTniankvZPpg73kuI3mmK/lhYnmupDvvIzmiYDku6XmnIjkuq7jgIHpm6rjgIHpk7bluZXkuI3lsZ7kuo7lhYnmupDjgII8L2Rpdj4=
 
本课配套习题挑战模式3/6
| A: 玻璃 | 
| B: 水 | 
| C: 真空 | 
| D: 空气 | 
- 提示1:IOWFieWPr+S7peWcqOecn+epuuS4reS8oOaSre+8jOS4lOS8oOaSremAn+W6puacgOW/qw==
 - 答案:Qw==
							PGRpdj7lo7Dpn7PkuI3og73lnKjnnJ/nqbrkuK3kvKDmkq3vvIzkvYbmmK/lhYnlnKjnnJ/nqbrkuK3kvKDmkq3pgJ/luqbmnIDlv6vvvIzmiYDku6XpgInmi6lD6YCJ6aG544CCPC9kaXY+
 
本课配套习题挑战模式4/6
| A: 小孔成像 | 
| B: 瞄准射击 | 
| C: 影子的形成 | 
| D: 色散现象 | 
- 提示1:IOW4uOingeeahOWFieayv+ebtOe6v+S8oOaSreeahOeOsOixoeacie+8muWwj+WtlOaIkOWDj+OAgeWwhOWHu+eehOWHhuOAgeaXpemjn+OAgeaciOmjn+OAgea/gOWFieWHhuebtOOAgeW9seWtkOeahOW9ouaIkOOAgemYn+WIl+Wvuem9kOetiQ==
 - 提示2:IOWFieeahOiJsuaVo+aYr+WFieeahOaKmOWwhOeOsOixoQ==
 - 答案:RA==
							PGRpdj7lsI/lrZTmiJDlg4/jgIHlsITlh7vnnoTlh4bjgIHlvbHlrZDnmoTlvaLmiJDlsZ7kuo7lhYnmsr/nm7Tnur/kvKDmkq3nmoTnjrDosaHvvIzmiYDku6VB44CBQuOAgUPog73lpJ/or7TmmI7lhYnmsr/nm7Tnur/kvKDmkq3vvIzliJnpgInmi6lE6YCJ6aG5PC9kaXY+
 
本课配套习题挑战模式5/6
| A: 日食现象 | 
| B: 千手观音 | 
| C: 森林里的光斑 | 
| D: 水中的倒影 | 
- 提示1:IOW4uOingeeahOWFieayv+ebtOe6v+S8oOaSreeahOeOsOixoeacie+8muWwj+WtlOaIkOWDj+OAgeWwhOWHu+eehOWHhuOAgeaXpemjn+OAgeaciOmjn+OAgea/gOWFieWHhuebtOOAgeW9seWtkOeahOW9ouaIkOOAgemYn+WIl+Wvuem9kOetiQ==
 - 提示2:IOawtOS4reeahOWAkuW9seaYr+WFieeahOWPjeWwhOeOsOixoQ==
 - 提示3:IOajruael+mHjOeahOWFieaWkeaYr+Wwj+WtlOaIkOWDj+WOn+eQhu+8jOivtOaYjuWFieayv+ebtOe6v+S8oOaSrQ==
 - 答案:RA==
							PGRpdj7msLTkuK3nmoTlgJLlvbHmmK/lhYnnmoTlj43lsITnjrDosaHvvIzmiYDku6VE6YCJ6aG55LiN6IO96K+05piO5YWJ5rK/55u057q/5Lyg5pKt77yM5YW25LuW5LiJ5Liq6YCJ6aG55piv5bi46KeB55qE5YWJ5rK/55u057q/5Lyg5pKt55qE546w6LGh77yM5YiZ6YCJ5oupROmAiemhueOAgjwvZGl2Pg==
 
本课配套习题挑战模式6/6
| A: 树阴下的光斑 | 
| B: 透过老花镜看报纸 | 
| C: 岸边的树在湖水中的倒影 | 
| D: 一端插入水中的筷子看起来变弯折了 | 
- 提示1:IOW4uOingeeahOWFieayv+ebtOe6v+S8oOaSreeahOeOsOixoeacie+8muWwj+WtlOaIkOWDj+OAgeWwhOWHu+eehOWHhuOAgeaXpemjn+OAgeaciOmjn+OAgea/gOWFieWHhuebtOOAgeW9seWtkOeahOW9ouaIkOOAgemYn+WIl+Wvuem9kOetiQ==
 - 提示2:IOajruael+mHjOeahOWFieaWkeaYr+Wwj+WtlOaIkOWDj+WOn+eQhu+8jOivtOaYjuWFieayv+ebtOe6v+S8oOaSrQ==
 - 答案:QQ==
							PGRpdj7mo67mnpfph4znmoTlhYnmlpHmmK/lsI/lrZTmiJDlg4/ljp/nkIbvvIzor7TmmI7lhYnmsr/nm7Tnur/kvKDmkq3vvIzmiYDku6XpgInmi6lB6YCJ6aG5PC9kaXY+
 
中学生网络课堂
						