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What new methods were used to fight World War I?

A)bayoneta and cannons
B)drones and surface to air missiles
C)atomic bombs and submarines
D)trench warfare and airplanes in battle

User Coglialoro
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2 Answers

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A. bayoneta and cannons
User AarCee
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The answer is D. Back in the early 1900’s, planes were still relatively new and expensive.
User DLCross
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