稳压管在稳压时应（）接在负载两端。
A.正向串联
B.正向并联
C.反向串联
D.反向并联
参考答案：D
初产妇第一产程活跃期延长的概念是指活跃期时间超过（）。
A.14小时
B.12小时
C.10小时
D.8小时
E.6小时
She has a pen in one of her hands, but what's that in ______ hand? [ ]
A. another
B. the other
C. other
D. the others
