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TOEFL
/
Listening practice
/ Section ZGR9
Listen to an Announcement
Listen to an announcement in a laboratory.
Listen
42. Why has the new procedure been introduced?
A
To reduce the amount of reagent that is wasted
B
To make it possible to trace which batch was used in an experiment
C
To limit access to the cupboard to a few groups
D
To move responsibility for reagents from the office to the laboratory