Though sometimes______, all too often technology is seen as a______for the great economic, social, and political challenges facing the nation as it embarks on the path of modernization.（）

单项选择题Maureen radiates an unfailing common sense and good humor, although not a false cheery______; she has no illusions about life, and her grace comes from her capability to meet it______.（）

A、 mirth… flinchingly
B、 naiveté … head-on
C、 insensitivity … callously
D、 charm… promptly
E、 ignorance … obscurely

单项选择题In contrast to Goya’s various representations of sincere tears, then, are a series of representations of insincerity and emotional______.（）

A、 confusion
B、 machination
C、 probity
D、 fortuitousness
E、 boldness