The man tried (尝试) several times (几次) to start the car, and he succeeded (成功）__________.

根据对话内容，填写适当单词补全对话
A: ____  me, could you____ 　me the way to the nearest book shop, please?
B:Certainly. Go along this road and turn right____ the traffic ____ 　.
Then walk on ____ you reach the second crossing. And then turn left. You will see a bridge. Go across the bridge. You will find the shop ____ the right. It's ____ 　the post office ____ 　the fruit shop. You can't ____ 　it.
A:Thank you very much.
B:You're　____ 　.

有门的地方经常能看到门吸，门吸里面有什么？利用什么原理制成的？

在实验室里，用足量的氢气在加热条件下还原8g氧化铜，可得到铜多少克？（提示：反应的化学方程式为 CuO+H₂ $\underset{\_}{\underset{\_}{△}}$ Cu+H₂O）

半岛的特点是(    )