Hi, All
I 'm new to Selenium.
I meet a very confused problem about the Selenium API open function.

I use the selenium.open(url) to open the page.
The problem is:
With the same URL address entering, why there is difference between the page opened by Selenium and by my mannaul.

The web page layout is the same, but status of one element is different, opening page manually, this element is enabled, while on the page opened by Selenium, this element is disabled, very strange...

in this case, the element is a drop-down list object.

Who can help me, very appreciate.