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【单选题】
It is your data on the rising labor costs in Beijing that gave David the idea of ___ our unprofitable operation there.A.
phasing out
B.
phasing in
C.
phrasing out
D.
phrasing in
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反馈参考答案：
举一反三
【简答题】若三棱锥的三条侧棱两两垂直，且侧棱长均为 ，则其外接球的表面积是（ ）。
【简答题】若三棱锥的三条侧棱两两垂直，且侧棱长均为 3 ，则其外接球的表面积是______．
【判断题】Noah and his family got out of the ark after 40 days for it rained 40 days and 40 nights.
A.
正确
B.
错误
【简答题】God told Noah to build a large boat called an ______ to save his family and the animals from the flood.
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