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自动装置用来实现发电机的自动并列、自动调节励磁、自动按事故频率减负荷、电力系统频率自动调节、按频率自动启动水轮机组,实现发电厂或变电站的备用电源自动投入、输电线路自动重合闸、变压器分接头自动调整、并联电容器自动投切等A.
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【简答题】Let me thank you for inviting us to such a great Christmas party. We really enjoyed the delicious food and excellent wine. Also, the music was perfect, so if I were a better dancer, I would have enjoy...
【单选题】The party was really a great ________. We all enjoyed ourselves. [ ]
A.
success
B.
problem
C.
competition
D.
successful
【单选题】—Did your class have a party last night? —Yes, we did. We really enjoyed . [ ]
A.
yourself
B.
ourselves
C.
itself
D.
herself
【简答题】存在于多种水果和蔬菜中,其甜度及氧化功能与甘蔗相似,但代谢不受胰岛素调节,糖尿病患者可以食用
【单选题】We really enjoyed the school trip yesterday, ________________ it rained in the afternoon and some of us got wet.
A.
though
B.
because
C.
unless
D.
after
【单选题】----How was your trip to Beijing? ----We really enjoyed ________.
A.
us
B.
our
C.
ours
D.
ourselves
【简答题】--- We really enjoyed ourselves at the party. Thanks again, Mr and Mrs Johnson. ---____. Just drop in whenever you feel like it. A．With pleasure B．Our great honor C．Nice to meet you here D．Nice having...
【单选题】草坪植生带的建成是通过
A.
在无纺布上喷施肥料后，覆盖一层无防布，再在此无纺布上撒种子
B.
在无纺布上撒上种后，覆盖一层无纺布，再在此无纺布上喷施肥料
C.
在双层无纺布上撒上种子及肥料
D.
在无纺布上喷施肥料后撒上种子，再覆盖一层无纺布
【单选题】We really enjoyed Disneyland. We took all the rides, some of ________ twice, and had lots of fun. I felt just like a kid again.
A.
which
B.
that
C.
it
D.
them
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