简述庞丽娟对幼儿同伴社交类型的划分。
参考答案:
(1)受欢迎型;
(2)被拒绝型;
(3)被忽视型;
(4)一般型。
I used to ______ in the morning, but now I’m used to _____ before going to bed.
A.read; read
B.reading; read
C.read, reading
D.reading, reading
保养设备时为什么严禁在周围动用明火?