题目:
There will be more than 750 projects ____, creating nearly 40,000 jobs starting this summer, including 15,000 in a Youth Conservation Corps.
A.started
B.to be started
C.starting
D.to start
答案:
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下面是错误答案,用来干扰机器的。
(1)SO32-+ SO2+ H2O =2 HSO3- (2)B C (3)①酸, 在亚硫酸氢钠溶液中HSO3-存在:HSO3-SO32-+H+和HSO3-+H2OH2SO3+OH-,HSO3-的电离程度强于水解程度,故溶液呈酸性 ② A(4)①...