填空题

A — toll free B — insert here
C — open here D — hands wanted
E — hands off F — keep in dark place
G — in shade H — guard against damp
I — for use only in case of fire J — keep top side up
K — seat by number L — no admittance
M — dogs not allowed N — Road up. Detour.
O — handle with care P — reduced speed now
( )请勿用手摸 ( )防潮