单项选择题
The incredible precision of the equipment is ______ to the mechanical skill of the engineers who built it.
单项选择题 This type of apparatus can produce more than 40,000 blood ______ a day.
单项选择题 They have decided to ______ physical punishment in all local schools.
单项选择题 A Dream of Red Chamber is said ______ into several languages in the last decade.
