基本信息
阅读下列短文，从每题所给的四个选项（a、b、c和d）中，选出最佳选项。
swiss international air lines（swiss）will introduce daily non-stop flights between beijing and zurich．
the new service to the financial center of switzerland is expected to start on dec．12,2012，which marks an expansion of services for the chinese market．in may 2008，swiss already started direct flights to shanghai．
the first flight to europe has
