静脉注射局麻药后最易发生的即刻并发症是组织坏死。()
参考答案：对
根据汉语提示完成句子。
1. I often _____________ (读书) on Saturdays.
2. I can _____________ (扫地) every day.
3. There are many clothes _____________ (在衣橱里).
4. The grapes are _____________ (酸的). The apples are _____________ (甜的).
5. I'd like _____________ (鱼和青豆).
负责把RNA转录成互补DNA分子的（）酶可以解释由（）引起的永久性基因转变。
