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单选题 <iframe src="4f8b8d328d8353bab35a885afa088d6e"></iframe> B. Watch the episode again and select the correct answers小题:According to Maria, an official order may be ________
A. on company letterhead with a valid signature and company stamp
B. on company letterhead with a valid signature or company stamp
C. on company letterhead without a signature or company stamp

学科:商务英语视听说3
时间:2025-12-22 03:40:03
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