【单选题】下列反应中,属于取代反应的是 ①CH 3 CH=CH 2 +Br 2 CH 3 CHBrCH 2 Br ②CH 3 CH 2 OH + 3O 2 → 2CO 2 + 3H 2 O ③CH 3 COOH+CH 3 CH 2 OH CH 3 COOCH 2 CH 3 +H 2 O ④C 6 H 6 +HNO 3 C 6 H 5 NO 2 +H 2 O [ ]
【简答题】完成句子。 1.Hello, my name i s Li Lei. I liv e __ _______.( 北京) 2.What's his name? ____ ____ is Danny. 3. ____ _____ ____ (给我)two books, please? 4. ____ _____ _____ ( 多少把钥匙) do you have?
【单选题】Would you please tell me _______next , Mrs Li? [ ]
【单选题】What attitude should NOT be taken in the appraisal interview?
C.
Respect and consideration
【单选题】下列反应中,属于取代反应的是 ①CH 3 CH=CH 2 +Br 2 CH 3 CHBrCH 2 Br ②CH 3 CH 2 OH CH 2 =CH 2 +H 2 O ③CH 3 COOH+CH 3 CH 2 O CH 3 COOCH 2 CH 3 +H 2 O ④C 6 H 6 +HNO 3 C 6 H 5 NO 2 +H 2 O
【单选题】反应CH 2 ==CH 2 +H 2 O CH 3 CH 2 OH的反应类型是