经济寿命(名词解释)

A. The bill would make it a felony to be an illegal immigrant in the United States.
B. The bill is not yet law.
C. The bill proposes to erect fences along two-thirds of the U.S.-Mexico border.
D. The bill would also penalize those who help or hire illegal immigrants.

A. The massive shaking magnitude.
B. Fires that burned uncontrolled for three days.
C. The panic of men, women and children.
D. The flood caused by the quake.