鼠笼式三相异步电动机通常有()个接线端子可与外电路相连接。
A.3
B.6
C.9
D.12
参考答案:A
— Did you hear the news this morning?
— Oh, yes, _____ was announced on the radio has caused great excitement among the students. [ ]
A. that
B. what
C. as
D. it
颅脑损伤患者出现哪些征象应立即做好术前准备()
A.呼吸深而慢
B.血压升高,脉压增大
C.出现脑膜刺激征
D.一侧瞳孔进行性散大,对侧肢体瘫痪
E.腰穿抽出血性脑脊液