Melting ice(融冰)can cause sea levels to rise. Since 1993, sea levels _______ at a speed of 3.2 cm every 10 years. ( )
A.roseB.have risenC.rise
Melting ice(融冰)can cause sea levels to rise. Since 1993, sea levels _______ at a speed of 3.2 cm every 10 years. ( )
A.roseB.have risenC.rise