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【多选题】
关于脊索的描述,哪些正确A.
分化形成脊柱
B.
诱导神经板的形成
C.
位的头侧
D.
在早期胚胎起一定的支架作用
E.
决定了胚盘头尾
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举一反三
【简答题】A．It took her the first seven years. B．It took her four years. C．It took her a good three years. D．It took her six years.
【简答题】 sense of how the US shows humor Living in a new country gives me many surprises. The first surprise was the way that the US people speak. One day I saw someone was having a public speech in a s...
【单选题】It ______ the Chinese people many years to build the Great Wall [ ]
A.
spends
B.
costs
C.
took
【单选题】He didn’t succeed overnight. On the contrary, it was many years ______ his career took off.
A.
since
B.
that
C.
before
D.
after
【单选题】It took western companies many years to ______ from the oil crisis of the mid-70s.
A.
regain
B.
recover
C.
retain
D.
refresh
【简答题】 sense of how the US shows humor Living in a new country gives me many surprises. The first surprise was the way that the US people speak One day I saw someone was having a public speech in a sq...
【单选题】. After many years’ hard work, his career really _____ and he became world famous.
A.
took on
B.
took off
C.
took up
D.
took away
【单选题】The author gives the example of Henry Metcalf to show that ______.
A.
older parents should exercise more to keep up with their athletic children
B.
many people are young in spirit despite their advanced age
C.
older parents tend to be concerned about their aging bodies
D.
taking afternoon naps is a good way to maintain energy
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