1:16:34,
=(1×12):(16×12):(34×12),
=12:2:9,
故答案为:12:2:9.
预防弓形虫病传播的措施主要有______________、________________、_________________、_________________、__________________。
I had great difficulty _____ the suitable food on the menu in that restaurant. [ ]
A. find
B. found
C. to find
D. finding