Birds orient themselves carefully with regard to the sun and gently ________ their wings to increase convection (气流对流) cooling.
举一反三
- The sun was gently through the trees.( )
- Many people regard<br/>themselves to be effective at negotiation.
- 【单选题】Which of the following is the best title for this passage? A. The Best Way to Keep Birds B. A Story of A Girl and Two Birds C. To Love Birds Is to Give Them Freedom D. Give Love Wings
- A pair of night birds circled above, the ______ of their wings and their weird screams penetrating the thickening mist. A: slapping B: clapping C: flapping D: flipping
- Medicines that cause sun _________can increase the chance of sun damage. A: activity B: specificity C: sensitivity D: toxicity