3. Which of the following was a difficulty faced by the American military in the Vietnam War?
A. Problems identifying the enemy
B. Lack of military technology
C. Problems getting military supplies to Vietnam
D. Lack of military training

1. what was william harvey's discovery about the human body? @ two types of blood flowed through the veins and arteries. b four fluids existed in the body: blood, yellow bile, black bile, and phlegm. © the same blood flowed through the veins and arteries. d ancient ideas of human anatomy and bodily functions were wrong. done