Computers can be designed ______ many automation processes purposes.

A．they had observed the procedure and could therefore substitute for disabled men
B．local militia companies had trained them very carefully for emergency fighting
C．they had a better safety record than man for using weapons
D．it was against the law for young boys to fire weapons

A．Only women were successful as water carriers.
B．Colonial women were particularly healthy and strong.
C．They were needed to make battle uniforms.
D．The army desperately needed combat soldiers.