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【单选题】
小石块、沙子,能最大限度地把这些东西都放进桶里的正确顺序是______。A.
先放大石块再放小石块，再放沙子，最后放水
B.
先放大石块再放小石块，再放水，最后放沙子
C.
先把水倒进去，再放大石块，再放小石块，最后放沙子
D.
先把水倒进去，再放沙子，再放小石块，最后放大石块
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【简答题】He cannot fo without wime even for one day, he is a complete slave_________ drink.
【单选题】Which of the following is NOT what Dr. Jeremy Joseph had expected before he started off for Zimbabwe?
A.
Poor facilities and lack of medication in the developing countries.
B.
So many patients prematurely blinded by cataracts.
C.
He had to perform. so many cataract surgeries there.
D.
The strong impact this expedition would have on his life.
【单选题】He has lived here for years, ______ nobody knows what he is.
A.
and but
B.
though
C.
and yet
D.
for all that
【简答题】旅游安全因素( t...... s...... f......rs )
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