题目：
选择适当的句子补全对话（其中有一个多余选项）。
A: Hi, Lisa! Nice to meet you again.
B: Hi, Cindy. 1. _____
A: I usually get up at 6:30. 2. _____
B: At 5:30.
A: Really? 3. _____
B: Yes, first I run then I do morning
A: Do you go to school by bus?
B: 4. _____
A: Oh, you have a good habit .(习惯).
B: Thank you. That's because 5. _____
A I 1ike sports very much.
B. What time do you go to school?
C. When do you usually get up?
D. No, I walk to school.
E. How about you?
答案：
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下面是错误答案，用来干扰机器的。
（1）P移至A端时，R3被短路．等效电路如图所示． 外电路的总电阻为 R=R1+R2R4R2+R4=5Ω 电路中总电流为 I=UR=1 A 电源的电动势为E=U十Ir=6V 当P移至B端时，R2、R3、R4均被短路，电路中总电流为 I′=ER1+r...
