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【单选题】
不等式2x-4≤0的是（ ）A.
x≤2
B.
x≥2
C.
x≤-2
D.
x≥2
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【单选题】— Where is Tom? Why isn’t he here today? — Oh, he is ill ___________.
A.
in the bed
B.
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C.
on the bed
D.
on bed
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