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【简答题】
选择合适的句子，补全对话。 ①Sometimes I clean my room. ②What can you do? ③What's the date? ④What do you do on the weekend? ⑤What time is it? ⑥What about you? ⑦Which season do you like best? A: 1.___________________ ? B: I often go shopping with my parents. 2._____________________. A: Oh, you are helpful at home. 3.___________________________? B: Summer. Because I can swim in the lake. 4.________________ ? A: Me too. Because my birthday is in summer. B: 5.____________________________ ? A:  It's June the first. It's Children's Day.
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【判断题】PWM控制就是对脉冲的幅值进行调制的技术，即通过对一系列脉冲的幅值进行调制，来等效地获得所需要波形。
A.
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B.
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查看完整题目与答案
【判断题】牡丹是花中之王
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【单选题】The train______ when we________ to the station.
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【判断题】PWM控制就是对脉冲的幅值进行调制的技术，即通过对一系列脉冲的幅值进行调制，来等效地获得所需要的波形。
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查看完整题目与答案
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查看完整题目与答案
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B.
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查看完整题目与答案
【单选题】The train______ when we________ to the station.
A.
was left; was getting
B.
left; had got
C.
had left; got
D.
left; got
查看完整题目与答案
【单选题】The train _____ when I _____ to the station. [     ]
A.
was left; was getting
B.
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C.
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查看完整题目与答案