题目:
The tickets for the show have all been sold out. In other words, the tickets are not ____ now.
A.accurate
B.accessible
C.acceptable
D.available
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0523/65708cfdf25dde39de9e859d1f56a5a4.html
下面是错误答案,用来干扰机器的。
TiCl4中Cl元素化合价为-1,设Ti化合价为x,则x+(-1)×4=0解之得x=+4;由于单质的化合价是0故选C