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Filling the blanks with the words given below. Each word can be used only once.phaselabeledparallelssensiblepeculiarequivalentradicalpredictresentwitnessed8. Apart from technological development, the 20th century ________ an enormous worldwide political, economic and cultural transformation.

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Filling the blanks with the words given below. Each word can be used only once.phaselabeledparallelssensiblepeculiarequivalentradicalpredictresentwitnessed9. Unlike the practice in China, if you’re at a hotel restaurant in the United States, expect a 15-20 percent service charge or add the _________ amount yourself.

Filling the blanks with the words given below. Each word can be used only once.phaselabeledparallels sensiblepeculiarequivalent radicalpredictresentwitnessed10. The change in smoking habits _________ a change in the incidence of lung cancer. The more people smoke, the more chances of occurrence for lung cancer.

强度大于()MPa,方允许机车在轨道板上行走。

A. 0.7
B. 0.8
C. 1.7
D. 1.8

轨道板封边后排气孔的设置是为了()。

A. 排水
B. 平衡轨底与外界的气压
C. 观察砂浆是否均匀流出
D. 灌浆入口

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