题目内容

John is usually late for appointments. I will be very surprised if he __________ on time.

A. shows off
B. shows around
C. shows out
D. shows up

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Tragically, the young poet died in hospital from a bacterial _______.

A. infection
B. injection
C. instruction
D. indication

实验课上完成几个实验数据表格?

A. 3
B. 4
C. 5
D. 6

实验数据表格中, 位置测量数据以厘米为单位,小数点后面应读出几位数字?

A. 1
B. 2
C. 3
D. 4

实验报告册中实验数据表格下方4个不确定度计算结果应保留几位有效数字?

A. 1
B. 2
C. 3
D. 4

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