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【单选题】
以下关于直导体感应电动势的说法中，正确的是（）。A.
相对运动导体单位时间内切割的磁力线数
B.
式中的v可以向任何方向切割
C.
B不一定是均匀磁场
D.
伸出磁场之外的导体也计入l
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【单选题】-- James is good at sports. He plays _____ basketball very well. --And he plays ______ piano well, too. ---Wow, so great!
A.
the, the
B.
/, /
C.
/, the
【单选题】---James is good at sports. He plays ______ basketball well, and he plays ______ piano well, too. --- Wow, he’s so great!
A.
the, the
B.
/, /
C.
/, the
D.
the,
【简答题】He plays _____(class)music, as well as pop and jazz.
【单选题】—James is good at sports. He plays _____basketball well, and he plays _____piano well, too. —Wow, he’s so good. [ ]
A.
the; the
B.
/; /
C.
/; the
D.
the; /
【简答题】根据图片及上下文提示完成单词。 1. — What does he do after class? — He often plays the ______________ after class. 2. — How can I go to America? — You can go there by ______________. 3. — Can you ride the ___________...
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