【简答题】指出下列各配位化合物中配位单元的空间结构,并写出其有几种几何异构体。 ( 1 ) [Cr(NH 3 ) 3 (H 2 O) 3 ]Cl 3 ( 2 ) [Co(NH 3 ) 2 (en) 2 ]Cl 3 ( 3 ) [Cr(H 2 O) 4 Cl 2 ]Cl · 2H 2 O ( 4 ) [Pt(NH 3 ) 2 (OH) 2 Cl 2 ] ( 5 ) [Pt(NH 3 ) 2 BrCl] ( 6...
【单选题】John is very interested in computer technology.
B.
how much computers cost
C.
how popular computers are
【简答题】指出下列各配位化合物中配位单元的空间结构,并写出其有几种几何异构体。 ( 1 ) [Cr(NH 3 ) 3 (H 2 O) 3 ]Cl 3 ( 2 ) [Co(NH 3 ) 2 (en) 2 ]Cl 3 ( 3 ) [Cr(H 2 O) 4 Cl 2 ]Cl · 2H 2 O ( 4 ) [Pt(NH 3 ) 2 (OH) 2 Cl 2 ] ( 5 ) [Pt(NH 3 ) 2 BrCl] ( 6...
【单选题】--- Is this_____ computer game? --- Yes, _____ is. It’s _____ computer game.
【单选题】[Pt(NH3)2BrCl]有几种几何异构体?
【单选题】John used to be such a computer buff that he spent a large part of his income ______ his computer whenever a new CPU was introduced.
【判断题】电压型逆变器适宜于不经常启动、制动和反转的拖动装置的中。
【单选题】下列加点子的读首全部正确的一项是( )
A.
徜(chànɡ)徉 广袤(máo ) 孤寂( jì ) 鲲(kūn)鹏
B.
腼腆(tiǎn) 委琐(suǒ) 踪迹(jì) 逍(xiāo)遥
C.
浮躁(cāo) 潇洒(shǎ) 懒散(sǎn) 喧(xuān)哗
D.
汹(xiōnɡ)涌 肉屑(xiè) 飘浮( fóu) 澎湃(bài)
【判断题】( )电压型逆变器适宜于经常启动、制动和反转的拖动装置中。