1. The Mississippi riverboat, which evolved from simpler steamship of the early 1800’s, became
A B
the dominant form of passenger transport on the Mississippi River.
C D
如何解释B选项是错的呢?D选项对吗?
2. Neptune circles the sun once every 164.8 Earth years, and its day - one rotation its axis – is
A B C
15.8 hours.
D
Every之后不是只能跟单数吗?
3. A major Canadian city, Montreal is second only to Paris as the most largest French-speaking
A B C D
city in the world.
偶不太清楚second的用法,哪位牛牛帮忙解释一下啊~
4. 偶还有一道题不太明白
A few species of mushrooms cause death or serious illness ___ .
A. having eaten
B. that they are eaten
C. are eaten
D. when eaten
选D。 |