据统计，二十世纪二十年代初中国的纺织业中，全国纱锭的41%集中在上海，10%集中在武汉，11%集中在天津，而广大内地纱厂很少。这反映当时

【提出问题】金属与盐酸反应剧烈程度受哪些因素的影响？

【做出猜想】a.可能与金属本身的性质有关；b.可能与盐酸的浓度有关。

【设计探究】实验所用金属均已用砂纸打磨。

翻译句子。

A man:Excuse me, how can I get to Beijing Station?

Franks:Go along this street. Turn right at the first crossing and Beijing Station is on your right.

A man:Wait a moment. Go along this street, and Beijing Station is on my right.

Franks:That's right.

A man: I want to go to the History Museum,too. Where is it?

Franks:It's on Renming Road. You can take bus No.1.

A man:Thank you very much.

Franks:Not at all.