问题
选择题
The purpose of new technologies is to make life easier, _______ it more difficult.
A．not make
B．not to make
C．not making
D．do not make
答案
答案：B
考查非谓语动词的结构平衡性。not to make it more difficult是与 to make it easier 形成对比的否定结构，两者在句中作表语。