如因工程设计、结构、外部环境等因素发生变化确需修改的，修改后的专项方案可以直接实施。
参考答案：错
根据句意及所给首字母，完成单词。
1．Our teachers are having a m ________ in the teachers' office.
2．Can I b ________ your bike? Mine is broken.
3．Lucy h ________ traveling by plane, but she likes taking the train.
4．Thank you very much for i ________ me to your party.
5．Please don't play w ______ that dog. It's dirty.
图为锋面气旋示意图。读图分析，下列说法正确的是：
A．该锋面系统表示的是北半球的冷锋
B．锋面过境后，M地的天气状况是天气转晴，气温下降
C．该锋面系统表示的是南半球的冷锋
D．锋面过境后，M地的天气状况是天气转雨，气温升高
