具有大数据量存储管理能力，并与。RAcLE数据库高度兼容的国产数据库系统是（）。
参考答案：达梦数据库系统
请根据图片写出相应的单词,描述各地的天气变化。
1. Beijing is __________ today.
2. It's __________ in Shanghai.
3. It's ___________ in Moscow.
4. In Toronto, it's _________today.
5. It's _______ in Sydney.
影响钢结构件焊接变形的因素有哪些？
today.
in Shanghai.
in Moscow.
Toronto, it's _________
today.
in Sydney.