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【单选题】
听力原文：(A) He's buying an umbrella. (B) He's clearing the table. (C) He's serving the diners. (D) He's waiting by the restroom.A.
B.
C.
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举一反三
【简答题】设 , 为随机变量,已知协方差 ,则 ____.
【简答题】The more (argue) ______ you win, the less friends you will have.
【单选题】下列关于疫苗技术发展的说法不正确的是()
A.
减毒活疫苗技术是第一次疫苗革命
B.
基因重组疫苗技术是疫苗技术发展的第二次革命
C.
反向疫苗学技术是第三次疫苗技术革命
D.
以上说法都不正确
【单选题】The more you argue with him, __________.
A.
the more little notice does he take
B.
the more little notice he takes
C.
the less notice he takes
D.
the less notice does he take
【单选题】听力原文：W: Why are you leaving Burchester, John? M: To make more money. W: You have a good pub here. M: The trade's better in Haworth, the home of the Bronte sisters. It is an important tourist centre. W...
A.
He is a book salesman.
B.
He is a tourist guide.
C.
He is a pub owner.
D.
He is a novelist.
【单选题】The more you argue with him, ______.
A.
the less notice he takes
B.
the less notice does he take
C.
the more little notice does he take
D.
the more little notice he takes
【简答题】根据句意用 should 或 shouldn't 填空。 1. You_________argue with your father any more. 2. If you want to be popular,you ___________ be friendlier. 3. Maybe you________ buy some new clothes. Funky Fashions is...
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