骑自行车的人以5m/s的初速度沿着向上的斜坡做匀减速直线运动，加速度的大小是0.4m/s*2,经过10s，他在斜坡上通过的距离是多少？

A. revoke
B. grant
C. insert
D. create

A. GRANT GRADE ON SC TO ZHAO
B. GRANT UPDATE ON SC TO ZHAO
C. GRANT UPDATE(GRADE) ON SC TO ZHAO
D. GRANT UPDATE ON SC(GRADE) TO ZHAO

A. DROP USER user1;
B. DROP USER 'user1'.'localhost';
C. DROP USER user1.localhost;
DROP USER 'user1'@'localhost';