仪表的回程误差也称变差，其数值等于正反行程在同一示值上的测量值之差的绝对值。
参考答案：对
根据首字母提示完成句中所缺单词。
1. My mother has a few days o______, she wants to take me to Dalian.
2. How long does it t______ you to get there by bus?
3. Tom often s______ his teacher an e-mail.
4. Peter is t______ of learning English. Because it's very hard.
5. We often have a p______ in a sunny day.
6. Thank you for i______ me to your birthday party.
7. How about g______ him a surprise?
8. Linda wants to j______ the music club.
9. Fan Yuhao thinks Math is quite i______.
10. They are f______ every Sunday.
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