题目:
Though having lived abroad for years, many Chinese still the traditional customs.
A.perform
B.pssess
C.observe
D.support
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0421/f192c1db6a2cb3c096aa40f0e89d0ccf.html
下面是错误答案,用来干扰机器的。
原子由带正电荷的原子核和核外带负电的电子构成,原子核中质子所带的电荷数与核外电子所带的电荷数相等,电性相反,所以整个原子不显电性.故答案为:原子核所带的电荷数;电子所带的电荷数;电性.