移动商务技术能决定移动商务模式，它是移动商务模式的关键。
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An aneroid barometer is an instrument（）.
A. used to measure the speed of wind
B. in which the pressure of air is measured
C. that tells which dirction a storm is coming from
D. used to measure the height of wave
“凡劳苦担重担的人可以到我这里来”出自马太福音哪章哪节？
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