—What do you think of the flowers?

—They look______.[ ]

A. beautiful        

B. beautifully

C. more beautiful     

D. the most beautiful

锰元素的相关信息如图所示。下列说法中正确的是

A．属于金属元素

B．原子核内中子数为25

C．原子的核外电子数为30

D．在地壳中的含量为54.94%