Studies seem to suggest that bright blue and bright yellow are the most visible and …………………….. the safest colors for veh?

in addition: thêm vào đó
consequently: do đó (mang nghĩa tiêu cực)
therefore: do đó
however: tuy nhiên
Dịch: Các nghiên cứu dường như cho thấy rằng màu xanh dương và màu vàng sáng là dễ thấy nhất và do đó là màu sắc an toàn nhất cho xe

Studies seem to suggest that bright blue and bright yellow are the most visible and …………………….. the safest colors for vehicles.