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【简答题】
Cloning technology was a s_________ achievement in science. (壮观的,引人注目的)
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【单选题】This river is _____ that one.
A.
as three times long as
B.
the third time as
C.
three times the length of
D.
three times longer
【单选题】Compounds have very different appearances from the element of which they are made.
A.
化合物的形态与构成它们的元素极不相同。
B.
化合物的外表与构成它们的要素极不相同。
C.
化合物的元素与构成它们的形态极不相同。
D.
化合物的形态与构成它们的元素完全相同。
【单选题】It’s said that the team __________ twelve top European players.
A.
consists of
B.
is made of
C.
are made up of
D.
is made from
【简答题】微量元素(minor element，microelement或trace element)
【简答题】微量元素(minor element，microelement，trace element)
【单选题】Usually passengers are required to arrive at _____ one hour before ______ takes off.A．airport; ai
A.
8. Usually passengers are required to arrive at _____ one hour before ______ takes off. A．airport; aircrafts
B.
the airport, aircraft
C.
an airport, a aircraft
D.
the airport, the aircraft
【简答题】The significance of this clear distinction between the supporting element and the enclosing element is that the latter can be made relatively light and thin .( distinction名→ 动)
【单选题】My sister has two skirts． One is yellow，_________ is black．
A.
other
B.
another
C.
others
D.
the other
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