题目内容

反手发球时,脚可以越过发球线。

A. 对
B. 错

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Fill the blanks with the given words.JapaninstructorIrelandengineerdinerwaitress1. The ________ will come and take your order soon.2. ________ is famous for sumo wrestling.3. Peter is a(n) ________ . He helps to make buildings, bridges and roads in the city.4. St. Patrick’s Day is a celebration that began in ________. Everyone wears green to celebrate this day.5. My piano _________ has taught me so much.6. This______ has the best hamburgers! You should try one.

冷却液异常常见表现

A. 冷却液温度过高
B. 冷却液温度过低
C. 冷却液变质
D. 冷却液消耗量变大

冷却液正常工作温度多少摄氏度

A. 80-90
B. 70-80
C. 90-100
D. 50-60

一般情况下,汽油机与柴油机燃油系统无区别

A. 对
B. 错

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