下列选项中不属于最惠国待遇适用的例外是______。
A.
B.
C.
参考答案:A
对误码率进行观察测试时,测试时间不得少于()。
A.1h
B.24h
C.15天
D.一个月
After they got married, they decided to move back to the village and ______________there.
A.put down
B.calm down
C.set down
D.settle down