【单选题】【消耗次数：1】
栅栏组织位于上表皮之下，下表皮内侧为海绵组织的叶为（ ）
①
等面叶
②
异面叶
③
异型叶
④
变态叶
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【单选题】
11.Mrs. Black has got ____ instead of getting any better.
①
more bad
②
a little worse
③
much badly
④
a lot of worse
【单选题】
2. When we speak to people, we should be ___.
①
as polite as possible
②
as polite as possibly
③
as politely as possible
④
as politely as possibly
【单选题】
16. The jacket was so ____ that he decided to buy it.
①
much
②
little
③
expensive
④
cheap
【单选题】
19. Your room is ____ mine.
①
twice as large
②
twice the size of
③
bigger twice than
④
as twice large as
【单选题】
4. I think the story is not so ____as that one.
①
interesting
②
interested
③
more interesting
④
most interesting
【单选题】
3.This book is ____that one, but ____than that one.
①
as difficult as; expensive
②
as more difficult as; more expensive
③
as difficult as; more expensive
④
more difficult as; as expensive
【单选题】
20. Your room is ____ than mine.
①
three time big
②
three times big
③
three times bigger
④
bigger three times