1-2同步检测 ⅰ.根据句意及首字母提示补全单词 1．he a________ queen victoria as her personal physician. 2．neither its cause nor its c________was understood. 3．i________ john snow told the astonished people in broad street to remove the h________ from the water pump so it could not be used. 4．the map gave a v________ clue about the cause of the disease. 5．he knew it would never be c________until its cause was found.
