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Lesson 3 课前小测complete the following transmissions based on the what you have previewed.PIL: Wuhan Control, GASDF, request time checkCTL: calling Wuhan Control, your callsign.PIL: GASDFCTL: ____, time is 0715 and a half.

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CTL: CSN303, turn left heading 130 ________turn left heading 310

CTL: CCA102, Wuhan Approach, climb to and maintain FL310PIL: climb to and maintain FL130, CCA102CTL：_, __ i say again, climb and maintain FL310

CTL: BAW214, _______Wuhan Control on 124.32, good day.

结合酶催化的反应类型是由下列哪种因素决定的（）

A. 全酶
B. 酶蛋白
C. 维生素
D. 辅助因子
E. 核酸