A: as a result of several improvements和because coal replaced charcoal as the fuel used in the smelting of iron ore并列。语法上是可以的,因为两者都是原因状语
D除了with伴随不合适以外,reconcile和together也冲突了
you are not allowed to end modifiers with prepositions!
问一个例子的逻辑作用,联系上下文:Collectively these factors probably selected against tree climbing as a defensive strategy for sloth bear cubs.
expect身后不能用宾语从句,而应该用不定式
cells can be directed, used, and studied 平行
根号n结果只指正平方根
Of these students, dislike lima beans; and of those who dislike lima beans, also dislike brussels sprouts.这句话是嘛意思。。
C选项:ability身后需要用to do而不能用of doing。这点考查了“不定式和ing的区别”。用之于本题,当我们说,一个有能力干什么的时候,这件事的发生与否必然和我们拥有的能力有直接关系,若我们没有能力,这件事就不会发生。因此,ability身后的定语需要用不定式的形式。
B取非,仍然开着的工厂没有更少的工作(保持了一样的量或者更多),这个sales可能也会decline的。不能削弱结论。
选了E
at speeds much higher than (speeds) are currently possible.
E?
选了B,
in that 因为,
A 选项,more than all the North American Great Lakes combined. 作为状语,修饰前面动作hold,
后面是‘s是定语,前面要有相对应的定语和他平行。
Halley 's comet did cause such a worlwide sensation in no other historical sighting as (it did) in its return of 1910-1911
这题的关键在于建立 body movement 和mentally visualize time之间的关系
E的any不对