【多选题】在布局上,天坛按照使用性质的不同划分为神乐署和()等五组建筑。(浙旅选2017)
【简答题】(1)用配方法解方程3x 2 -x-1=0; (2)解分式方程 1 x+2 + 4 x 2 -4 + 2 2-x =1 .
【单选题】This passage is mainly about the development of psychological tests and their practical use.
【简答题】用适当的方法解下列方程 (1)(3x﹣1) 2 =(x+1) 2 (2)x 2 ﹣2x﹣3=0 (3)x 2 +6x=1 (4)用配方法解方程:x 2 ﹣4x+1=0.
【单选题】Young as he is, he is fairly______.
【单选题】He is a good leader. He can distinguish practical questions from moral issues and he knows when to ______ and when to fight.
【单选题】金属离子 M 与 L 生成逐级配位化合物 ML 、 ML 2 、 ... 、 ML n ,下列关系式中正确的是
C.
[ML n ]= β n [M] n [L]
【简答题】每条php语句以_________结尾。