问题
单项选择题 A1型题
对儿童少年进行生长发育调查，调查前应对测量仪器进行（）
A.准确度的校准
B.精确度、灵敏度的校准
C.精确度的校准
D.精度的校准
E.灵敏度的校准
答案
参考答案：B
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对儿童少年进行生长发育调查，调查前应对测量仪器进行（）
A.准确度的校准
B.精确度、灵敏度的校准
C.精确度的校准
D.精度的校准
E.灵敏度的校准
参考答案：B
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| Mary and Donald Smith lived in the same building. Donald 1 a toy company. One day Donald gave Mary. the 4-year-old girl. a new toy. She played with it and said. "This is fun! A few weeks later Donald gave her 2 toy. She played with it and then said."I'm not 3 in this toy. It doesn't work." For years Donald gave Mary new toys. and she gave him very good 4 about the toys. When Mary was 13 years old. Donald showed her a new ball. Mary wanted to 5 the ball with small stones to make it 6 .The company made this change. Mary's idea was a great success! The company sold thousands of the balls. That Christmas. Donald gave Mary an 7 gift. He made her vice-president (副总裁) of the toy company. She made $200,000 a year. Her job was to see 8 the new toys were fun. She worked 9 three or four hours a day at her job, then she had to do her homework. Today Mary works at a college. The little vice-president with bright ideas helps students think about their 10 . | ||||
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