婴儿期的定义是
A.出生至满1周岁
B.出生至满1岁前
C.从新生儿期结束至满1岁
D.从新生儿期结束至满1岁前
E.从脐带结扎至未满1岁
参考答案:B
What are the girls doing? They're _____________.[ ]
A. looking for flowers
B. looking like flowers
C. looking at the flowers
中国民航国内航班号第一位数字是航空公司的编排顺序号码。()