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【简答题】
已知一棵二叉树结点的前序序列为ABDGCFK，对称序列为DBGAFKC，该结点的后序序列为（ ）。 A）DGBKFCA B）GDKCBFA C）DBGAFKC D）GDBFKCA
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举一反三
【单选题】After looking at many new cars, I found ______ which I would accept just as suitable．
A.
it
B.
this
C.
that
D.
one
【单选题】- Why did you _______ change your mind? -I realized my plan wasn't practical after a long discussion.
A.
easily
B.
successfully
C.
quickly
D.
finally
【单选题】I really don’t know _________ I put my wallet after I paid the bill．
A.
where was it
B.
it was where that
C.
where was it that
D.
where it was that
【单选题】Pentium主板上的Cache存储器的作用是( )。
A.
提高软盘与主存间的传送速度
B.
提高CPU与外部设备间的传送速度
C.
提高硬盘与主存间的传送速度
D.
提高CPU与主存储器间的传送速度
【单选题】______had I bought the computer______I regretted spending so much money on it.
A.
After that
B.
Not only but
C.
As soon as and
D.
No sooner than
【单选题】It was not _____ she took off her glasses _____ I realized she was a famous film star.
A.
when , that
B.
until , that
C.
until , that
D.
when , then
【多选题】患者，女性，54岁。发现左颈前气管旁包块1年，渐长大，体检包块4.5cm×3cm，质地较硬，边界欠清，无明显压痛。近1个月来自觉吞咽有异物感、梗阻感，并出现声音嘶哑，伴间歇性气憋。无吞咽疼痛、呕血、咯血、发热、多汗、烦躁、易怒等不适。食管吞钡检查提示颈段食管管腔局限性隆起，黏膜完整、连续、无缺损及皱襞紊乱。空腹血糖9.2mmol/L。如需行手术，术前准备工作不正确的是（）。
A.
术前3天开始应用抗生素治疗
B.
气管软化实验
C.
控制血糖
D.
口服碘剂
E.
测定甲状旁腺功能
F.
短疗程 131 Ⅰ治疗
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