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【单选题】
栈中元素的进出原则是A.
先进先出
B.
后进先出
C.
后进后出
D.
不分顺序
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反馈参考答案：
举一反三
【单选题】It’s wise _______ you _______ your child at home alone while it’s also very important _______ him to learn to protect himself.
A.
of, to leave, of
B.
of, to leave, for
C.
for, leave, for
D.
for, leave, of
【单选题】—It's said that Tom is a wise manager in your company. —Oh, no, he is ________ but a wise leader.
A.
anything
B.
anyone
C.
anybody
D.
anywhere
【单选题】关于不当署名的情况,以下哪一项与之无关:
A.
未对论文作出实质性贡献者署名，对论文有实质性贡献者被拒绝署名。
B.
署名顺序不能反映作者真实贡献大小。
C.
作者单位、学历、课题等信息真实有效。
D.
未经他人同意在论文中署其名。
【单选题】It’s very wise of you to ________ well trained workers _____ untrained ones in the assembly line.
A.
substitute; for
B.
substitute; with
C.
replace; with
D.
instead; by
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