【判断题】溶液的 pH 愈小,金属离子与 EDTA 配位反应能力愈低。
【单选题】关于化合物与吸附剂吸附力的说法正确的是
A.
能在吸附剂和吸附分子间有诱导力时,吸附力就大
B.
被吸附分子的极性大,吸附力就大;烷烃的吸附力较大。
C.
分子双键增多,特别是形成共轭时吸附力变小,苯环的影响比双键大。
D.
同系物中分子量大则吸附作用也强,同分异构体若形成了分子内氢键,则对吸附剂的吸附力大大减小
【单选题】빈칸에 알맞은 것을 고르십시오 가:오늘은 ( )? 나:오늘은 10월29일이에요.
【单选题】“I don’t agree with putting God back into policymaking. That idea originated with the Tea Party and I want nothing to do with that group.” What type of fallacy is represented?
【单选题】What is the basic sentence sentence type in "I made myself a cup of tea."
【单选题】What is the basic clause type of the following sentence? Every guest coming into the cafe may make himself a cup of tea.
【多选题】企业的库存现金发生盘盈时,报经批准后的账务处理中可以计入的贷方科目有( )。
【单选题】2 What is the basic clause type of the following sentence? Every guest coming into the cafe may make himself a cup of tea.