St. Andria Cross (The white cross on the blue background) represents _____________
举一反三
- St. George Cross (The red cross on the white background) represents___________.
- When white cat cross to black cat, F1 is white cat. F1 cats cross each other, and the proportion of white, black and brown cats in F2 is 9:3:4. What is the reason for this? ( ) A: Dominant epistasis B: Additive effect C: Recessive epistasis D: Suppression
- The children are always warned the street when the trafic light is red . a. not to cross b. to cross A: not to cross B: to cross
- 跨境电子商务的英文名称是（ ） A: Cross Border Commerce B: Cross border Trade C: Cross Border E-commerce D: Cross Border Communication
- Indigo prints are made of homespun fabrics with blue designs on a ___________ background or white designs on a ___________ background.