Drupal, Html, PHP and CSS从来没用过，初学，一周以后可以胜任工作吗？

Creates and Updates Web pages for Publications, Seminars, Research, Conferences.
The job involves requirements gathering, development & quality checking of the website.
Website is developed and maintained in Drupal, Html, PHP and CSS.
让我维护一个网站，但我Drupal, Html, PHP and CSS.
都不会，该如何是好？ Drupal, Html, PHP and CSS.这些从来没用过，以前都是用c++
学习一周能行吗？