Wordsworth was one of the greatest poets__________lived in the 19th century.
A. that
B. who
C. which
D. he
对2A及以上用电流速断保护灵敏性不符合要求的变压器应装设()。
A. 过流
B. 零序
C. 纵差
D. 过负荷
启动分离器的位置决定了启动过程中汽水膨胀量和汽水膨胀强度的大小。
A. 正确
B. 错误
expected her to__________her promise.
A. carry on
B. carry out
C. carry off
D. carry away