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【简答题】
设随机变量的概率密度为 且 ，求：
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【简答题】根据句意及首字母提示写单词。 1. -Do you w_______ a green jacket? -No, I don't. 2. We s_______ pants for only fif yuan. 3. We have skirts in all colors at a very good p_______ . 4. You can a_______ to buy this T...
【简答题】第二节 完型填空（共10小题；每小题1分，满分10分） 阅读下面短文，掌握其大意，然后从第31至第40小题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。 . I have had thousands of classes since I started school nine years ago. But only one 31 was the most impor...
【单选题】西湖秀美的风景千百年来一直为人称道，而各个朝代的诗人更是以诗寄意。对于西湖六月美景，（）的诗人（）写诗赞叹：“毕竟西湖六月中，风光不与四时同。接天莲叶无穷碧，映日荷花别样红。”
A.
北宋苏轼
B.
南宋杨万里
C.
唐代白居易
D.
北宋王安石
【简答题】根据句意，填入适当的词完成句子。 1. My mum buys the sweater _______ 20 yuan. 2.1 want to_______ a pair of shoes. 3. The store sells things at a _______ good price. 4. —What's the _______ of this sweater? —It's 20 d...
【单选题】听力原文：W: Excuse me, can I try this T-shirt on? M: Certainly. What size would you like? W: M, please. M: This one must be suitable. W: Could you please show me that blue one? M: Sorry, we have only larg...
A.
Blue.
B.
Red.
C.
White.
D.
Green.
【单选题】佳句作品作家朝代组合正确的一项是( )
A.
“明月几时有？把酒问青天。”《水调歌头?明月几时有》辛弃疾宋朝
B.
“接天莲叶无穷碧，映日荷花别样红。”《钱塘湖春行》杨万里宋朝
C.
“孰知赋敛之毒有甚是蛇者乎！”《捕蛇者说》柳宗元宋朝
D.
“存者且偷生，死者长已矣！”《石壕吏》杜甫唐朝
【简答题】At one time or another we have all stopped to think about the weather. Some days the weather is good. Some days the weather is bad. Sometimes a day that seems bad turns out better than you thought it ...
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