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【简答题】
XML的特性主要表现在（ ）等几个方面。 A. 结构化 B. 自描述 C. 可扩展 D. 浏览器的自适应
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举一反三
【单选题】What _______ your uncle that evening? [ ]
A.
happened to
B.
has happened to
C.
was happened
D.
happened with
【简答题】在梯形面积公式S= 1 2 （a+b）h中，已知a=4，h=8． （1）若已知b=20，则面积S=______； （2）若已知S=20，求b的值．
【单选题】What _____ the forest of the USA in the last 350 years? [ ]
A.
has happened to
B.
is happened to
C.
has happened at
D.
is happening
【简答题】I’ve been to Beijing.(翻译)
【简答题】老已知a=10，b=20，则表达式!a
【单选题】What the animals of China in the last 400 years? [ ]
A.
has happened to
B.
is happened to
C.
has happened with
D.
is happening
【简答题】若已知a=10，b=20，则表达式!a
【单选题】(Either) the brother (or) the sister will tell (their) father about (what has happened).
A.
Either
B.
or
C.
their
D.
what has happened
【单选题】What _____the forests of the USA in the past 30 years? [ ]
A.
has happened to
B.
is happened to
C.
has happened at
D.
is happening
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