用符号填空:a质子数;b中子数;c核外电子数;d最外层电子数。(1)原子种类由_______________决定,(2)元素种类由_______________决定,(3)核电荷数由_______________决定,(4)相对原子质量由_______________决定,(5)元素的化合价主要由_______________决定,(6)元素的化学性质主要由_______________决定。 答案:(1)a、b (2)a (3)a (4)a、b (5)d (6)a、d
I really don’t think Rose will be angry, but I’ll go and see her in case she ________.
[ ]
A.
will be
B.
does
C.
is
D.
has been