5-6ii=(5-6i)ii2
=5i-6i2-1
=-6-5i.
故选D.
Tomorrow there's a program about our school on TV, then it by millions of people. [ ]
A. will see
B. saw
C. will be seen
D. was seen
( )对国家大气环境质量标准和大气污染物排放标准中未作规定的项目,可以制定地方标准。
A.县级人民政府
B.市级人民政府
C.省级人民政府
D.特别行政区环境部门