1.I suggest____these materials away;they can be reusedA.not to throw B.not throw C.no throwing D.not throwing 2.Emphasis is laid on the neccessity that all the objectives to be attained____into account before starting a new projectA.be taken B.were t

1.I suggest____these materials away;they can be reusedA.not to throw B.not throw C.no throwing D.not throwing 2.Emphasis is laid on the neccessity that all the objectives to be attained____into account before starting a new projectA.be taken B.were t 用学过的英语单词填空.1.( )i( ) 2.( )i( ) 3.( )i( )( ) 4.( )i( )( ) 5.( )i( )( )( ) 6.( )i( )( )( ) 7.( )i( )( )( )( )8.( )i( )( )( )( ) 复数的计算1.i* i^2 * i^3 *.* i^20082.(1+i)^15+(1-i)^15/(1+i)^14-(1-i)^14 计算：1. (1-i)/(1+i) 2. (3+2i)/(4-3i) ( )the ninth letter.选择：1.I am2.I am3.I is4.Iis i i I I, I I I i i i i -I I