Prolonged use of display screen equipment may induce work-related musculoskeletal disorders. The following are considered as contributing factors except: 長時間使用顯示屏幕設備可引致筋肌勞損，其危害因素不包括：Single choice

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Question textComplete the following protocol table for setting up your standard curve for protein. Remember, each of your standards, except the reagent blank, will be prepared in duplicate in the lab (i..e, you will make up each of these standards twice), giving you 11 standards. When filling in your answers, be careful with your formatting and note the following requirements: for all entries of concentrations, volumes and amounts in this table, include two decimal places (e.g. '1.5') for any decimal numbers less than one, make sure you precede the decimal point with the number zero (i.e. type in '0.2'; not '.2' without the zero) [table] Standard | Concentration of BSA standard | Volume of 20 mg/mL BSA stock solution required (mL) | Volume of 0.05 M NaOH diluent required (mL) | Amount of BSA present (mg) | Volume (mL) 1(reagent blank) | 0 | Answer 1 Question 6 | Answer 2 Question 6 | Answer 3 Question 6 | 0.8 2 | 4 | Answer 4 Question 6 | Answer 5 Question 6 | Answer 6 Question 6 | 0.8 3 | 8 | Answer 7 Question 6 | Answer 8 Question 6 | Answer 9 Question 6 | 0.8 4 | 12 | Answer 10 Question 6 | Answer 11 Question 6 | Answer 12 Question 6 | 0.8 5 | 16 | Answer 13 Question 6 | Answer 14 Question 6 | Answer 15 Question 6 | 0.8 6 | 20 | Answer 16 Question 6 | Answer 17 Question 6 | Answer 18 Question 6 | 0.8 [/table]

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