Inventions by one of Texas’ scientific leaders changed the way heart surgeries are performed.

Please select the best answer from the choices provided

T
F

True

Explanation:

he pioneer was Dr Michael Debakey. He devised a heart lung machine in 1930, and numerous surgical innovations that saved many lives. It was estimated that Debakey did over 60,000 surgeries in his lifetime.

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(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.