题目

As the warm August dayspassed, Pollyanna went very (frequent) to the great house on Pendleton Hill. 答案：【1】frequently右图为元素周期表中钚元素的相关信息，下列说法不正确的是（  ） A.钚是金属元素                          B.钚原子的质子数为94 C.钚原子的中子数为94                    D.钚的相对原子质量为224