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【简答题】
简述自然选择的作用、方式，并举例说明自然选择对物种形成的作用。
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举一反三
【单选题】This is a______building, which is about______high.
A.
six-storey; 38 metre
B.
six-storeys; 38-metre
C.
six-storeyed; 38 metres
D.
six-storey; 38-metres
【单选题】Which of the following was NOT included in the six-point demand of the Chartist Movement?
A.
Equal electoral districts
B.
Voting by secret ballot
C.
The vote for all adult males
D.
The vote for all adult females
【单选题】Which statement is not true about “six” according to the passage?
A.
“ Six” is regarded as a lucky number in China because it has a connoation of “ smoothness”.
B.
Six takes on positive connotation in English.
C.
According to the Bible, “six” at times represents imperfection.
【单选题】Output is now six times ______it was before liberation.
A.
that
B.
which
C.
what
D.
of which
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