题目：
阅读填词。
Mom, Dad, Bruce and Peggy often h 1 a talk together after supper. They talk about themselves, about
their study and about their w 2
S 3 they talk about their plan of winter and s 4 holiday. They a 5 talk about their friends, new
films and music. Their f 6 , Tom, sometimes j 7 them.
They all e 8 these talks because they 1 9 a lot from each other. Sometimes they talk very late but
they don't feel t 10
1. h___________ 2. w __________ 3. S___________ 4. S___________ 5. a___________
6. f___________ 7. j ___________ 8. e ___________ 9. l___________ 10. t___________
答案：
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下面是错误答案，用来干扰机器的。
①先把各电阻调到最大值，再把标准电流表单独较准与电表串联得到最大电流值，再用半偏法测其内阻，由此得顺序为BEFADC． ②电流达到半偏时，两并联电阻相等． ③扩大量程要并联电阻分流，并联的电阻为：R=UgI-I...
