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【单选题】
幽门螺杆菌是一种致病菌，现在已知的与此菌关系密切有A.
慢性胃炎，消化性溃疡，反流性食管炎
B.
慢性胃炎，胃息肉，非溃疡性消化不良
C.
慢性胃炎，消化性溃疡，胃平滑肌瘤
D.
慢性胃炎，消化性溃疡，胃癌
E.
急性胃炎
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举一反三
【简答题】队列中能进行插入操作的一端称________,能进行删除操作的一端称________。
【单选题】By the middle of the 18th century, many different kinds of Protestants lived in America. Although the Church of England was an established church in several colonies, Protestants lived side by side in...
A.
To cut across the lines of Protestant religious groups or denomination.
B.
A revival movement of seeking to breathe new feeling and strength into religion.
C.
To live side by side in relative harmony.
D.
To spread religious idea to other countries.
【单选题】下列关于胰岛素的叙述正确的是
A.
胰岛素是降低合成代谢的激素
B.
胰岛素是由胰岛β细胞分泌的胰岛素原转变而来
C.
胰岛素与胰岛素原都有生物活性
D.
胰岛素与C肽以2：1的摩尔比释放入血
E.
胰岛素首先与细胞膜上受体结合后，触发细胞内一系列特异性相应的生物学效应
【简答题】队列中能进行插入操作的一端称________,能进行删除操作的一端称________。
【单选题】By the middle of the 21 st century, the vast majority of the world’s population _____ in cities rather than in the country.
A.
are living
B.
will be living
C.
have lived
D.
will have lived
【单选题】By the middle of the 21st century , the vast majority of the world’s population ________ in citi
A.
10. By the middle of the 21st century , the vast majority of the world’s population ________ in cities rather than in the country. A．are living
B.
will be living
C.
have lived
D.
will have lived
【单选题】By the middle of the 1920s the farthest corners of the earth explored.
A.
are
B.
were
C.
have been
D.
had been
【单选题】By the middle of the 21st century, the vast majority of the world’s population
A.
other than
B.
more than
C.
better than
D.
rather than
【单选题】By the middle of the 21st century, the vast majority of the world’s population ______ in cities rather than in the country.
A.
are living
B.
will be riving
C.
have lived
D.
will have lived
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