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【判断题】
( )抗原的特异性决定于抗原决定簇。A.
正确
B.
错误
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【单选题】When I was 16 years old, I made my first visit to the United States. It wasn't the first time I had been 【C1】______ . Like most English children I learned French at school and I had of-ten 【C2】______ ...
A.
out
B.
aboard
C.
away
D.
abroad
【单选题】When I was 16 years old, I made my first visit to the United States. It wasn't the first time I had been 【B1】. Like most English children I learned French at school and I had often 【B2】 to France, so ...
A.
out
B.
aboard
C.
away
D.
abroad
【简答题】When I was 16 years old, I made my first visit to the United States. It wasn’t the first time I had been __36__ . Like most English children I learned French __37_ school and I had often been to Franc...
【单选题】When I was 16 years old, I made my first visit to the United States it wasn't the first time I had been 56Like most English children I learned French at school and I had often 57 to France, I so I was...
A.
out
B.
aboard
C.
away
D.
abroad
【简答题】When I was 16 years old, I made my first visit to the United States. It wasn’t the first time I had been abroad. Like most English children, I learnt French at school and I had often been to France, s...
【简答题】完形填空 When I was 16 years old, I made my first visit to Disneyland in America.It wasn't the first time I had been __ 1 __.Like most English children I learned French at school and I had often been to F...
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