A:1一氯丙烷中加入氢氧化钠溶液并加热:CH3CH2CH2Cl+NaOH →△水 CH3CH═CH2↑+NaCl+H2O
B:苯酚钠溶液中通入少量二氧化碳:2C6H5O﹣+CO2+H2O→2C6H5OH+CO32﹣
C:乙醛溶液中加入新制碱性Cu(OH)2悬浊液并加热CH3CHO+2 Cu(OH)2+OH﹣ →△ CH3COO﹣+Cu2O↓+3H2O
D:向小苏打溶液中加入醋酸:CO32﹣+2CH3COOH═CO2↑+H2O+2CH3COO﹣
1992年海峡两岸关系发展的一次历史性突破是( )
Where does your aunt work? ( at a school )
____
A. Good morning, Cutie!
B. Today is your birthday. Happy birthday!
C. Good morning, Mum!
D. Thank you, Mum
E. Let's cut the cake together.
F. OK. Let's cut!
____ ____ ____ ____ ____ ____