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【单选题】
石英砂岩的结构是：（）A.
变晶结构
B.
碎屑结构
C.
等粒结构
D.
化学结构
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举一反三
【单选题】Look! Tom with his friend ________ hair. He ________ handsome.
A.
is cutting, looks
B.
are cutting, is looking
C.
is cutting, looks like
D.
are cutting, is looking like
【单选题】在下列函数中,函数值为数值的是
A.
AT('人民','中华人民共和国')
B.
CTOD('01/01/96')
C.
BOF()
D.
SUBSTR (DTOC(DATE()),7)
【单选题】Why do UK universities try to attract postgraduate students from outside the EU?
A.
A substantial part of their revenue comes from non-EU students tuition and fees.
B.
Non-EU postgraduate students are usually highly motivated.
C.
The number of UK postgraduate students has fallen sharply.
D.
Some of the postgraduate progrmnmes are specially designed for non-EU students.
【单选题】截取当前字符串s从3到末尾的子串的语句是()
A.
s.left(3)
B.
s.right(3)
C.
s.subString(3)
D.
s.subString(3,s.length())
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