That's the very way he suggests ____ the math problem.
有一恒力F施于质量为m1的物体上,产生加速度a1;若此力施于质量m2的物体上,产生加速度a2,若此力施于质量为m1+m2的物体上,产生的加速度为( )
Kelly works in a restaurant as a waitress in her spare time, so we can say she does a ________ job.
如图,在Rt△ABC中,∠ABC=90°,DE是AC的垂直平分线,交AC于点D,交BC于点E,∠BAE=20°,则∠C的度数是( )
植物的生长需要量最多的无机盐是