题目

（12分）用适当的方法解方程：（1）                  （2）（3）                 （4）  答案：（1）                             （2）解：    （1分）                解：  （1分）   （1分）                         （1分）   （1分）            （1分）（3）                           （4）       解：                   �______giving a general introduction to computer, the course also provides practical experience.A．In exchange forB．Except forC．In addition toD．Due to