Who was the first to develop the large-scale production of O2 in 1907?

a. Robert Dalton
b. David Boyle
c. Thomas Anderson
d. Karl von Linde

ANS: D
Large-scale production of O2 was developed by Karl von Linde in 1907.

Health Professions

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The cow was ___________, which is the process of bringing up food material from the stomach to the mouth for further chewing

Fill in the blank(s) with correct word

Health Professions

On the CMS-1500 claim form, the abbreviation DD indicates that:

A) up to two diagnosis codes can be entered. B) a doctor of dentistry performed the service. C) the day of the month should be entered as two digits. D) durable medical equipment (DME) was ordered.

Health Professions