答案解析里面的Terms of trade 是什么意思？问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2018091706000064 问题如下 Beauregarhconcerns about the firm’s experiencesring currencrises. She recalls reang a stu procethe IMF thanimpenng currencrisis is signalenumerous economic variables. She makesthe following statements with regarto some of these variables:1. Trabalances exhibit substanticline prior to the crisis.2. Acountry hstinctive economic growth patterns aheof the crisis.3. Inflationis significantly higher in the pre-crisisperioWhiof Beauregars statements regarng acurrencrisis is the most accurate? A.Statement 3 B.Statement 2 C.Statement 1 Statement 3 is the most accurate. Inflation ten to significantly higher in pre-crisisperio comparewith tranquil perio.解析A最准确的。与平静时期相比，危机前时期的通胀率往往要高得多。C错误，the terms of tra而非Tra balances下降。如果是Tra balances大幅下降，表明危机已经发生，就不是危机的信号了。B错误，因为危机发生前，经济不会有什么额外的增长。 B为什么Tra balances大幅下降，表明危机已经发生
NO.PZ2018091706000064 问题如下 Beauregarhconcerns about the firm’s experiencesring currencrises. She recalls reang a stu procethe IMF thanimpenng currencrisis is signalenumerous economic variables. She makesthe following statements with regarto some of these variables:1. Trabalances exhibit substanticline prior to the crisis.2. Acountry hstinctive economic growth patterns aheof the crisis.3. Inflationis significantly higher in the pre-crisisperioWhiof Beauregars statements regarng acurrencrisis is the most accurate? A.Statement 3 B.Statement 2 C.Statement 1 Statement 3 is the most accurate. Inflation ten to significantly higher in pre-crisisperio comparewith tranquil perio.解析A最准确的。与平静时期相比，危机前时期的通胀率往往要高得多。C错误，the terms of tra而非Tra balances下降。如果是Tra balances大幅下降，表明危机已经发生，就不是危机的信号了。B错误，因为危机发生前，经济不会有什么额外的增长。 我的理解the terms of tra是 出口/进口，Tra balances是 出口 -进口。 Tra balances exhibit substanticline prior to the crisis. 贸易收支在危机前出现大幅下降。→即（出口 -进口）大幅下降，→ 即出口下降幅度 大于 进口。the terms of tra贸易条件恶劣→ 即 出口/进口 降低，→ 即出口下降幅度大于进口。请问老师，这两个说的是一回事吗？区别在哪里哈？为什么一个代表危机发生之前，一个代表危机发生的过程中？谢谢老师。
NO.PZ2018091706000064问题如下Beauregarhconcerns about the firm’s experiencesring currencrises. She recalls reang a stu procethe IMF thanimpenng currencrisis is signalenumerous economic variables. She makesthe following statements with regarto some of these variables:1. Trabalances exhibit substanticline prior to the crisis.2. Acountry hstinctive economic growth patterns aheof the crisis.3. Inflationis significantly higher in the pre-crisisperioWhiof Beauregars statements regarng acurrencrisis is the most accurate? A.Statement 3B.Statement 2C.Statement 1 Statement 3 is the most accurate. Inflation ten to significantly higher in pre-crisisperio comparewith tranquil perio.解析A最准确的。与平静时期相比，危机前时期的通胀率往往要高得多。C错误，the terms of tra而非Tra balances下降。如果是Tra balances大幅下降，表明危机已经发生，就不是危机的信号了。B错误，因为危机发生前，经济不会有什么额外的增长。 这道题c，如何理解？我理解经济不是呈现充满泡沫的繁荣的状态么？ 这种繁荣是虚假的 就不能说经济是向好的 对么？
NO.PZ2018091706000064问题如下Beauregarhconcerns about the firm’s experiencesring currencrises. She recalls reang a stu procethe IMF thanimpenng currencrisis is signalenumerous economic variables. She makesthe following statements with regarto some of these variables:1. Trabalances exhibit substanticline prior to the crisis.2. Acountry hstinctive economic growth patterns aheof the crisis.3. Inflationis significantly higher in the pre-crisisperioWhiof Beauregars statements regarng acurrencrisis is the most accurate? A.Statement 3B.Statement 2C.Statement 1 Statement 3 is the most accurate. Inflation ten to significantly higher in pre-crisisperio comparewith tranquil perio.解析A最准确的。与平静时期相比，危机前时期的通胀率往往要高得多。C错误，the terms of tra而非Tra balances下降。如果是Tra balances大幅下降，表明危机已经发生，就不是危机的信号了。B错误，因为危机发生前，经济不会有什么额外的增长。 为啥这题目说是已经发生的信号呢？
NO.PZ2018091706000064 问题如下 Beauregarhconcerns about the firm’s experiencesring currencrises. She recalls reang a stu procethe IMF thanimpenng currencrisis is signalenumerous economic variables. She makesthe following statements with regarto some of these variables:1. Trabalances exhibit substanticline prior to the crisis.2. Acountry hstinctive economic growth patterns aheof the crisis.3. Inflationis significantly higher in the pre-crisisperioWhiof Beauregars statements regarng acurrencrisis is the most accurate? A.Statement 3 B.Statement 2 C.Statement 1 Statement 3 is the most accurate. Inflation ten to significantly higher in pre-crisisperio comparewith tranquil perio.解析A最准确的。与平静时期相比，危机前时期的通胀率往往要高得多。C错误，the terms of tra而非Tra balances下降。如果是Tra balances大幅下降，表明危机已经发生，就不是危机的信号了。B错误，因为危机发生前，经济不会有什么额外的增长。 Stat1
