妈妈买了80个鸡蛋,已经吃了30个,已经吃掉的比剩下的少百分之几?
(80-30-30)÷(80-30)=40%
—We are informed that the Weifang International Kite Festival starts at 7:00.
—Oh, I didn't expect it was so early! I ____ to go out for dinner with my friends first.
A.would plan
B.am planning
C.have been planning
D.was planning
黏度大于()的原油称为特稠油
A、100mpa•s
B、1000mpa•s
C、10000mpa•s
D、100000mpa•s