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【简答题】
表达式 chr(ord('b')^32) 的值为_________。
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皮皮学刷刷变学霸
举一反三
【单选题】_ ____ do you water the flowers? _ Three times a week. [ ]
A.
How long
B.
How soon
C.
How much
D.
How often
【单选题】— ______ do you help the old man with the housework? — Once a week. [ ]
A.
How soon
B.
How long
C.
How often
D.
How many
【单选题】—_____ has Miss. Jones been in Beijing? —For two and a half years. [ ]
A.
How far
B.
How long
C.
How often
D.
How soon
【单选题】—_____ has your father lived in the town? —Six years. [ ]
A.
How many
B.
How soon
C.
How long
D.
How often
【单选题】--- How is the _______ in Xiangyang ? --- It’s getting worse and worse. There are always long lines of cars on roads .
A.
culture
B.
food
C.
weather
D.
traffic
【单选题】验电前，应先在有电设备上进行试验，确证验电器良好无法在有电设备上进行试验时可用（）等确证验电器良好。
A.
通过按试验按钮试验
B.
高压发生器
C.
带到现场的高压设备上试验
D.
以上均不正确
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