题目内容
Listen to the following transmissions and fill in the blank with missing words.Request the 1 _____ and vectors for a 2.____________due 3. _____
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In this part, you are going to act in the role of pilots of different flights and complete the dialogues with proper transmissions.
Directions: In this part, you are going to act in the role of pilots of different flights and complete the dialogues with proper transmissions.
用于治疗动物充血性心力衰竭的药物是
用于治疗动物慢性心功能不全的慢作用强心昔类药物是
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