GMAT Verbal Reasoning Practice Test 7

Question : 50 of 100

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Medical waste is generally collected by gravity chutes, carts, or pneumatic tubes, each of which have their own advantages and disadvantages.

Medical waste is generally collected by gravity chutes, carts, or pneumatic tubes, each of which have heir own advantages and disadvantages.
Collected by gravity chutes, carts, or pneumatic tubes, each of which has its own advantages and disadvantages, is medical waste.
Medical waste is generally collected by gravity chutes, carts, or pneumatic tubes are also used, each of which has its own advantages and disadvantages.
Medical waste is generally collected by gravity chutes, carts, or pneumatic tubes, each of which has its own advantages and disadvantages.
There are advantages and disadvantages for each means of collection of medical waste, including gravity chutes, carts, and pneumatic tubes.

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