下列基本实验操作中，正确的是（ ）
A．
倾倒液体
B．
加热液体
C．
稀释液体
D．
量取液体
A、取用液体时：注意瓶口、标签的位置，瓶塞的放置；标签应向着手心，瓶塞倒放，图中操作错误．
B、给物质加热时，用酒精灯的外焰，外焰温度最高，试管内液体不可超过试管容积的三分之一，图中操作正确．
C、稀释浓硫酸时，将浓硫酸慢慢注入水中，并用玻璃棒不断搅拌，图中操作错误．
D、量取液体时，①俯视：量取的液体实际体积偏大；②仰视：量取的液体实际体积偏小．图中操作错误．
故选B．
| 根据上下文， 从方框中选出适当的单词，完成下列对话。 | |
Wang Mei: Hi, Jim. Jim: Hi, Wang Mei. 1________ to see you. Wang Mei: Nice to see you, 2________. Do you know 3________ Kate is? Jim: Who is Kate? Wang Mei: The girl 4________ the US. She is our new 5________. She has blond hair and big eyes. Jim: Do you mean the girl in a red dress? Wang Mei: No, she always 6________ a green sweater and blue pants. The girl in a red dress is Lucy. Jim: Oh, I see. She is 7________ in the library now, I think. You can go and find her there. She often comes here. Wang Mei: Thanks, Jim. By the 8________, do you go to the school library now? Jim: Yes, I do. I want to read 9________ some Chinese history. Wang Mei: Then could you 10________ her I'm waiting here? Jim: OK, I will. |