选择题:若干个正方体形状的积木按下图所示摆成塔型: 上方正方体中下底面的四个顶点是下面相邻正方体中上底面各边的中点, 最下面的正方体的棱长为1, 平放于桌面上, 如果所

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若干个正方体形状的积木按下图所示摆成塔型: 上方正方体中下底面的四个顶点是下面相邻正方体中上底面各边的中点, 最下面的正方体的棱长为1, 平放于桌面上, 如果所有正方体能直接看到的表面积超过8.8, 则正方体的个数至少是( )

image.png

A.4

B.5

C.6

D.7

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—Must I get up early tomorrow?—No, ________.

—Must I get up early tomorrow?—No, ________.

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若复数满足z(1-2i)=10,则

若复数满足z(1-2i)=10,则

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—Must I hand in the report now, sir? —_____________. You can hand it in tomorrow

—Must I hand in the report now, sir? —_____________. You can hand it in tomorrow.

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We ________ eat or drink in the museum. It is against the rule.

We ________ eat or drink in the museum. It is against the rule.

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