【单选题】化学组成为PtCl4·2NH3,它的溶液不导电,与AgNO3不产生沉淀,该配合物的化学式为________。
B.
[PtCl 2 (NH 3 ) 4 ] Cl 2
D.
[PtCl 3 (NH 3 ) 2 ] Cl
【单选题】听力原文:W: I'm sorry for that. (13)
【单选题】水轮机能量转换过程中产生能量损失,对效率大小起决定作用的是 ( )
【单选题】—Excuse me. Is ______ e-dictionary yours? —Oh, yes. I am looking for it everywhere. Thank you very much.
【单选题】给出一个三类问题,其判别函数如下: d1(x)=-x1,d2(x)=x1+x2-1,d3(x)=x1-x2-1 设这些函数是按【图片】两分法确定的,则(0,0),(2,2),(-2,5)分别属于:
【单选题】化学组成为PtCl 4 ·2NH 3 , 它的水溶液不导电, 与硝酸银不产生沉淀, 该配合物的化学式为( )。
C.
[PtCl 2 (NH 3 ) 4 ]Cl 2
【单选题】Take these pills three times a day. Come back and see me in a week.()
A.
Thank you very much indeed.
C.
I haven't decided yet.
【简答题】-Your skirt is so nice. -__________. A.It’s not nice B.No, it isn’t C.You’re welcome D.Thank you very much.