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【简答题】
The Old Man and the Sea ia a famous book around the world. The writer, Hemingway, got the Pulitzer Prize ( 普利策奖 ). Hemingway wrote the book in 1952, and it was thought a classic example of Hemingway works. Readers love this book because it tells so much about our life. Besides it teaches us how to successfully catch a big fish, the most important is that it tells us our own loneliness and thoughts for life. Sometimes , we put ourselves into boxes, thinking we are “old” “young” “unlucky” “silly” , And these saying slowly but surely wear away our confidence ( 信心 ). The book tells such a story , Santiago was once the best fisherman ever. But then he grew older and couldn’t catch a fish for 84 days. Everyone said he was unlucky and already old. He fought the sayings. Finally he caught a big fish. That should be what we do. What else would make a man go out into the sea in a small boat all by himself to fis for three days. 根据材料内容选择最佳答案
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【判断题】电泳是常用的DNA检测方法,在电泳中DNA分子的泳动方向是从正极向负极。
A.
正确
B.
错误
【简答题】averiguar presente de subjuntivo: yo______, tú ______ , vosotros ______ pretérito imperfecto de subjuntivo: ella ______,nosotros ______
【简答题】enfurecer (Presente: yo)
【简答题】divertirse ( él, presente)
【简答题】saber (Presente)
【简答题】incluir (ustedes, presente)
【判断题】电泳是常用的 DNA 检测方法,在电泳中 DNA 分子的泳动方向是从正极向负极。
A.
正确
B.
错误
【判断题】电泳是常用的DNA检测方法,在电泳中DNA分子的泳动方向是从负极向正极。
A.
正确
B.
错误
【单选题】凝胶电泳是常用的DNA检测方法,在电泳槽中DNA分子的泳动方向是()。
A.
从负极到正极
B.
与电场的极性无关
C.
从正极到负极
D.
大片段向负极,小片段向正极
【判断题】电泳是常用的DNA检测方法,在电泳中DNA分子的泳动方向是从正极向负
A.
正确
B.
错误