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【单选题】
给出四个结论, 1{1,2,3,1}是由四个元素组成的集合 2集合{1}表示仅有一个“1”组成的集合 3{2,4,6}与{6,4,2}是两个不同的集合 4集合{大于3的无理数}是一个有限集 其中正确的是A.
②③
B.
②③④
C.
①②
D.
②
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举一反三
【单选题】______ to the CD . A . Listen B. Read C. Write D speak
A.
Listen
B.
Read
C.
Write
D.
Speak
【单选题】根据使用材料的不同,楼板可分为 。
A.
楼板、钢筋混凝土楼板、压型钢板组合楼板
B.
钢筋混凝土楼板、压型钢板组合楼板、空心板
C.
肋梁楼板、空心板、压型钢板组合楼板
D.
压型钢板组合楼板、木楼板、空心板
【单选题】Teaching Poetry No poem should ever be discussed or 'analyzed', until it has been read aloud by someone, teacher or student. Better still, perhaps, is the practice of reading it twice, once at the beg...
A.
discuss it with others
B.
analyze it by oneself
C.
copy it down in a notebook
D.
practice reading it aloud
【单选题】根据使用材料的不同,楼板可分为
A.
木楼板、钢筋混凝土楼板、压型钢板组合楼板
B.
钢筋混凝土楼板、压型钢板组合楼板、空心板
C.
肋梁楼板、空心板、压型钢板组合楼板
D.
压型钢板组合楼板、木楼板、空心板
【简答题】A．Read a particular magazine. B．Listen to the walkman. C．Buy a cup of coffee. D．Read a novel.
【单选题】根据使用材料的不同,楼板可分为 。
A.
木楼板、钢筋混凝土楼板、压型钢板组合楼板
B.
钢筋混凝土楼板、压型钢板组合楼板、空心板
C.
肋梁楼板、实心板、压型钢板组合楼板
D.
压型钢板组合楼板、木楼板、空心板
【单选题】No one would have time to read or listen to an account of everything ______ going on in the world.
A.
it is
B.
which is
C.
that is
D.
what is
【单选题】No one would have time to read or listen to an account of everything ______ going on in the world.
A.
it is
B.
there is
C.
as is
D.
what is
【单选题】No one would have time to read or listen to an account of everything ______ going on in the world.
A.
it is
B.
as is
C.
there is
D.
what is
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