【单选题】请听录音 选择划线部分的语调。 He turned off the light () took his bag () opened t

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【单选题】请听录音,选择划线部分的语调。 He turned off the light (), took his bag (), opened the door () and went out.

A.↗ ↗ ↗

B.↘↘↘

【单选题】请听录音 选择划线部分的语调。 He turned off the light ()  took his bag ()  opened t

热搜:单螺杆挤出机的主要组成部分有哪些