影响能力发展的遗传因素主要指的是一个人的()。
A.秉性
B.素质
C.儿童正常发育的物质条件
D.儿童身体的各个器官和神经系统能否正常发育的条件
参考答案:B
根据句意及汉语提示填空
1. Smoking is bad for our lungs. It may cause _______ (癌症).
2. I want to _______ (选择) a nice gift for her as a birthday present.
3. The burglar (盗贼) got in_______ (从,通过) the window.
4. Li Fei likes throwing _______ (垃圾) about. That's not polite.
5. Look! She is _______ (扫) the room now.
公路监督检查人员执行公务,应当(),()。