急性脊髓炎的好发部位在()
A.颈髓
B.胸髓
C.腰髓
D.骶髓
E.圆锥
参考答案:B
根据句子意思及所给的词首字母或汉语提示,完成下列单词。(5分)
小题1: –E__________ me, Are you Mr. Green?
-- Yes, I am.
小题2:Jane and Amy are s__________. Their mom is a teacher.
小题3:Maria and Jane b__________ have long hair.
小题4:I have a friend. He is __________ (二十) years old.
小题5:His __________ (手) are big.
关于变压器在空载状态时的相关操作,说法正确的是()。
A.停运空载变压器时,可能产生励磁涌流;
B.停运空载变压器时,可能产生操作过电压;
C.变压器在空载时投入电容器组,可能会产生铁磁谐振现象;
D.变压器在空载合闸时,必定产生励磁涌流。