2个问题～求高手！～～～～～～～～～～～～

mlvince

Antigenic shift refers to the combination of two different strains of （influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.）
A. influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza
B. influenza, different than the natural mutation of a single strain, known as antigenic drift
C. influenza, in contrast to the natural mutation of a single strain, known as antigenic drift
D. influenza, different than antigenic drift, which refers to the natural mutation of a single strain of influenza
E. influenza; in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza
Key: A.
这题考的是什么？

In 1527 King Henry VIII sought to have his marriage to Queen Catherine annulled so as to marry Anne Boleyn.
(A)    so as to marry
(B)    and so could be married to
(C)    to be married to
(D)    so that he could marry
(E)    in order that he would marry
Key: D
a为什么不可以？？主语不是一样的么？

2013notlate

1st :parallel, 分号

mark

mlvince

1st :parallel, 分号

mark

-- by 会员 2013notlate (2011/3/29 0:34:15)

分号可以是平行的标志是吗？

clumsy123

不是分号，应该是in contrast，比较对象一致