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【多选题】
最惠国待遇原则的例外包括( )。A.
政府采购的例外
B.
以关税同盟和自由贸易区等形式出现的区域经济安排
C.
对发展中成员实行的特殊和差别待遇
D.
允许成员为便利边境贸易而只给予毗邻国家优惠
E.
知识产权领域的例外及服务贸易的一次性例外
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皮皮学刷刷变学霸
举一反三
【单选题】---I’ll ask the teacher about past tense. I’m very puzzled about it. --- That is just _____ most of our classmates have doubt.
A.
what
B.
why
C.
where
D.
how
【简答题】The night of graduation, I was afraid. Two hundred people were sitting out there. I felt tense and I wanted to run away, 36 I couldn’t! After all, my own children were sitting in front of me with many...
【单选题】What tense is this? "I am here."
A.
present perfect
B.
present simple
C.
past perfect
D.
past progressive
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