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【简答题】
deliver obligation vary firm marketing capacity rather than EXW means that the seller fulfills his ______________ to deliver when he has made the goods available at his premises to the buyer.
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反馈参考答案：
举一反三
【判断题】相位检波型鉴频器是调频信号通过频相转换网络将瞬时频率变化变换到附加相移上; 然后通过相位检波器检出附加相移变化的,即实现了鉴频。 检测附加相位的的变化的电路叫做鉴相器。
A.
正确
B.
错误
【单选题】— is the zoo from the bus stop? — It’s about 10 minutes’ walk .
A.
How long
B.
How soon
C.
How far
D.
How much
【简答题】细胞是人体形态、结构、生理功能与生长发育的 。
【单选题】— ______ is a ticket to Garden Expo? — It’s about 100 yuan.
A.
How much
B.
How many
C.
How long
D.
How often
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