某原子核吸收一个中子后,放出电子,分裂为两个α粒子,由此可知[ ]
A.A=7,Z=3
B.A=7,Z=4
C.A=8,Z=3
D.Z=8,Z=4
答案:A
组句子,注意大小写及标点符号。
1. and is warm spring rainy
.
2. can forwards you skate
?
3. slide on we sometimes snow the
4. on Danny putting is boots his
5. want snowmen to they make
执行行政班的营业网点,柜员的空白重要凭证要一日两次交叉复查,营业经理每周抽查,抽查面须达到100%。