The longest-ruling chinese dynasty was the
a. shang.
b. hsia.
c. ch'in.
d. chou.

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b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.