纪律审查主要是审查()和()是否存在违反党纪的行为。
A.党员
B.党员领导干部
C.党组织
D.党支部
参考答案:A, C
①H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l)
②H2SO4(aq)+Ba(OH)2(aq)=BaSO4(s)+2H2O(l)
③NH3•H2O(aq)+HCl(aq)=NH4Cl(aq)+H2O(l)
④NH3•H2O(aq)+CH3COOH(aq)=CH3COONH4(aq)+H2O(l)
其中反应热为57.3kJ/mol的是( )
A.①②
B.③
C.④
D.均不符合
句型转换。(10分)
小题1:She has a new bike.(改为否定句)
She ____ ____ a new bike.
小题2:They are English.(同义句转换)
They are ____ ____.
小题3:My sister is eleven.(对画线部分提问)
____ ____ is your sister?
小题4: Tom has big eyes.(改为一般疑问句)
____ Tom ____big eyes?
小题5:They are their apples.(对画线部分提问)
____ ____ are these?