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【简答题】
纵向研究的缺点在于（ ）。
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【简答题】阅读理解。 We've talked about snails (蜗牛) and their slow move. But much of the time snails don't move at all. They are in their shells-sleeping. Hot sun will dry out a snail. So at the least sign of hot su...
【简答题】阅读理解。 We've talked about snails (蜗牛) and their slow move. But much of the time snails don't move at all. They are in their shells (壳) -sleeping. Hot sun will dry out a snail's body. So at the least si...
【简答题】We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They are in their shells (壳) —sleeping. Hot sun will dry out a snail’s body. So at the least sign of ...
【简答题】We’ve talked about snails（蜗牛） and their slow move. But much of the time snails don’t move at all. They are in their shells —sleeping. Hot sun will dry out a snail’s body. So at the least sign of hot s...
【简答题】阅读理解。 We've talked about snails (蜗牛) and their slow move. But much of the time snails don't move at all. They are in their shells-sleeping. Hot sun will dry out a snail's body. So at the least sign of...
【单选题】This is the very novel, about ________ we've talked so much . [ ]
A.
that
B.
it
C.
which
D.
what
【简答题】We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They’re in their shells ---sleeping . Hot sun will dry out a snail’s body. So at the least sign of ho...
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