铺盖屋面瓦时，顶层脚手面应在槽口下（）处，并满铺脚手板。
A.0.5m
B.0.5~lm
C.lm
D.l.2~1.5m
参考答案：D
--- What’s your neighbour like? --- .
A．He is fine. Thank you.
B．He is a doctor.
C．He likes watching TV.
D．He is helpful and generous.
芽和根尖中都有分生组织。 （ ）
