— The storybook is very interesting.
— I agree with you. I ______it twice already.
A:read
B:will read
C:have read
关于时刻和时间,下列说法正确的是( )
下列粒子中,带正电的是( )
①(﹣5)+(+3)=﹣8;②﹣(﹣2)3=6;③(+ 56 )﹣(﹣ 16 )=1;④﹣3÷(﹣ 13 )=9.