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【单选题】
如果父类只定义了带参数的构造方法, 在 子类的构造函数中就要使用关键字( )调用父类的构造方法。A.
final
B.
extends
C.
implements
D.
super
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举一反三
【单选题】He had two houses. He lived with his wife and child in the outer house, ______ was comfortable and clean.
A.
which
B.
that
C.
it
D.
where
【单选题】I am hunting for a house: nice, bright, comfort table and ________ with a big garden.
A.
all over
B.
after all
C.
above
D.
in all
【简答题】The workers from countryside want to have a _____(comfort) house in the city so much.
【简答题】We found the sofas of the coffee house(comfort)____ and fashionable.
【单选题】-I hear they aren’t pleased with the house you’ve chosen for them -Well,______ could they live in such comfort?
A.
where else
B.
what else
C.
how
D.
why
【简答题】单缝的宽度b=0.40mm，以波长λ=589nm的单色光垂直照射，设透镜的焦距f=1.0m．求：
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