灯L1上标有“12V 9.6W”的字样，灯L2上只能看清12V的字样，测得两灯的电流与电压的关系如图所示，求：
读一读，选一选。
(____ ) 1. How are you? A. Fine, thank you.
(____ ) 2. Nice to meet you. B. Nice to meet you, too
(____ ) 3. Colour it brown. C. OK!
(____ ) 4. Good afternoon. D. Good afternoon
“东方之星”沉船事故救援中，潜水员所携带钢瓶中的气体主要是（ ）
