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【判断题】
大型叶没有叶柄，叶片仅有简单的叶脉，从中柱的边缘分出，叶柄和中柱之间没有叶隙。而小型叶在叶柄分出的时候形成叶隙，并且经常形成复杂的叶脉。它们可能具有不同的起源方式。A.
正确
B.
错误
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举一反三
【简答题】Most of us are the only child in our family. We have no brothers or sisters. Our family mainly consists of our mom,our dad and us. We are growing up in a world differently from our parents’. And we wi...
【简答题】The students were excited when they (see) ______ their newly-built school.
【简答题】Intercity Bank is planning to furnish the newly-built office building.
【单选题】Lots of problems _______ from the newly –built apartment .
A.
rise
B.
raise
C.
lift
D.
arise
【单选题】The newly built cafe′， the walls of ________ are painted light green, is really a peaceful place for us, specially after hard work. [ ]
A.
that
B.
it
C.
what
D.
which
【简答题】按照伺服系统类型,可将数控机床的控制系统分为( )伺服系统、( )伺服系统和( )伺服系统。
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