大家来看看这两道GWD的语法题该选什么？

renaultboy

GWD-10-Q37:GWD-11-26

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A.On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B.On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C.On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D.Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E.Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

是B还是E？

--------------------------------------------------------------------------------------------------------------------

GWD-10-Q38

Imported into Massachusetts form Europe in 1869, the gypsy moth was used by a French scientist in an attempt at developing a strong strain of silk-producing insects, crossing gypsy moths with adult silkworms
.
A.Imported into Massachusetts from Europe in 1869, the gypsy moth was used by a French scientist in an attempt at developing a strong strain of silk-producing insects, crossing gypsy moths with adult silkworms.
B.Imported into Massachusetts form Europe
in 1869, a French scientist was attempting to develop a strong strain of silk-producing insects by crossing gypsy moths with adult silkworms.
C.To cross gypsy moths with adult silkworms, in attempting the development of a strong strain of silk producing insects, a French scientist in 1869 imported the gypsy moth into Massachusetts from Europe
.
D.The gypsy moth was imported into Massachusetts from Europe
in 1869 by a French scientist attempting to develop a strong strain of silk-producing insects by crossing gypsy moths with adult silkworms.
E.In an attempt at the development of a strong strain of silk-producing insects, a French scientist, importing the gypsy moth from Europe into Massachusetts
in 1869 in order to cross gypsy moths and adult silkworms.
这题到底选什么，糊涂了

谢谢NN

飞行2010

我觉得是 E;A，is it correct?

liverpool123

should be E,D

不过第一个题目是否是rate被在树干处看到，我持怀疑态度