I want ________ the music club. [ ]
A. to join
B. join
C. joining
D. joins
答案:A
He wrote a lot of novels, none of _____ translated into a foreign language.
A.them
B.which
C.it
D.what
“绿色试剂”双氧水可作为采矿业废液的消 毒剂,可消除采矿业废液中的氰化物(如KCN),化学方程式为:KCN +H2O2+H2O=A+NH3↑。
(1)生成物A的化学式为___,反应中被氧化的元素是___。
(2)在标准状况下有0.448 L氨气生成,则转移的电子数为____。