求高人指点OR12 SC 两道题 14, 31

naodai20

1. Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the suiface of the Sun but have never been sighted on the Sun's poles or equator

A. are visible as dark spots on the surface of the Sun but have never been sighted on
B, are visible as dark spots that never have been sighted on the surface of the Sun
C. appear on the surface of the Sun as dark spots although never sighted ar
D. appear as dark spots on the surface of the Sun, although never having been sighted at
E. appear as dark spots on the Sun's surface. which have never been sighted on

答案说C和D错在although后的句子不完整，但是它的主语是SUNSPOTS，和主句主语一致， 是不是可以省略阿？

2. Unlike the conviction held by many of her colleagues that genes were relatively simple and static, Barbara Mclintock adhered to her own more complicated ideas about how genes might operate, and in 1983, at the age of 81, was awarded a Nobel Prize for her discovery that the genes in corn are capable of moving from one chromosomal site to another

A. Unlike the conviction held by many of her colleagues that genes were
B. Although many of her colleagues were of the conviction of genes being
C. Contrary to many of her colleagues being convinced that genes were
D. Even though many of her colleagues were convinced that genes were
E. Even with many of her colleagues convinced of genes being

答案是D， B，C和E 解释说wordy and awkward, 不明白什么意思，想请教一下。

myungryong

1. 主语+be……，although…… 在这种结构当中although后面重复的主语和be可以省但是C D谓语是appear因此although后面的主语不能省

2.B当中的 were of the conviction of genes being
  C当中的 being convinced
  E当中的 genes being
这些明显比D复杂的多

naodai20

第一题明白了，但是第二题我还有一点不明白，就是awkward到底是什么意思啊，它在OG解释中出现好多次，它是指歧义吗？

多谢

v20AND750

第二题，the conviction  跟Barbara Mclintock 比较了，比较对象不对等，这是最直接地错误。
所以，比较对象对等的原则，就只剩下B跟D，B中were of the conviction of ，介词短语不如动词来的直接有效。