【判断题】正弦交流电的三要素指:有效值、频率和周期。( )
【多选题】改革开放以来,我国工人阶级队伍呈现出的新特点是()。
【多选题】改革开放以来,我国工人阶级队伍呈现出以下新特点( )。
【多选题】改革开放以来,我国工人阶级队伍发生了明显的变化,呈现出许多新的特点,这些新特点有( )
【单选题】断句:There are only two windows in thatroom .
A.
There are only two windows / in that room .
B.
There / are only two windows / in that room .
C.
There / are only two windows in / that room .
D.
There are / only two windows in / that room .
【判断题】正弦交流电的三要素是指有效值、频率和周期。
【多选题】改革开放以来,我国工人阶级队伍呈现出的新特点有( )
【多选题】改革开放以来我国工人阶级队伍发生了明显变化,呈现出许多新的特点( )。
【简答题】A.There are several small parties in the U.S. B.There are only two parties in the U.S. C.The most powerful party in the U.S. is the Democrats. D.The most powerful party in the U.S. is the Republicans.
【多选题】改革开放以来,我国工人阶级队伍发生了明显变化,呈现出的新特点是