【单选题】增大发动机转速,可以( )汽缸中火焰传播速度
【单选题】以下哪项决定着创业团队的性质、宗旨和任何获取创业的回报
【简答题】enterprising A. initiative B. commercial C. business-like D. busy
【单选题】关于肾小管对K + 的重吸收和分泌的叙述中,哪项是错误的()
A.
终尿中的K + 主要是远曲小管和集合管所分泌
B.
Na + 的重吸收使小管液呈负电位,成为K+分泌的动力
C.
在远曲小管后段和集合管的主细胞内K+浓度明显低于小管液的K + 浓度,故K + 分泌为主动转运
D.
Na + 进入主细胞后,刺激基侧膜的Na + 泵活动,从而促进K + 的分泌
【单选题】关于肾小管泌K + 的叙述,错误的是
C.
Na + -H + 交换与Na + -K + 交换相互促进
【单选题】Paragraph 2 Question What does the author mean by “Yet I could not have asked for more enterprising and optimistic parents”?
A.
My parents were the most enterprising and optimistic ones one could expect to find.
B.
The author doesn't think that her parents did all they could to support the family with their hard work, ingenuity and thrift, and that the family enjoyed “bucketloads of cheer.”
【简答题】A.confident B.ambitious C.conceited D.enterprising