【单选题】【消耗次数：1】
Anna was reading a piece of science fiction, completely _____ to the outside world.
①
having been lost
②
to be lost
③
losing
④
lost
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相关题目
【单选题】
23. Anna was reading a piece of science fiction, completely ____ to the outside world.
①
being
②
having lost
③
losing
④
lost
【单选题】
If the whole program __________ beforehand, a great deal of time and money would have been lost.
①
was not planned
②
were not planned
③
would not be planned
④
had not been planned
【单选题】
Sam, having forgotten to save his work [] lost all of his revisions when his computer crashed.
①
comma
②
dash
③
brackets
④
semicolon
【单选题】
The epic Paradise Lost is based on the stories from _______.
①
The New Testament
②
The Old Testament
③
The Ancient Greek Myths
④
The Ancient Roman Myths
【单选题】
This book has been in the works so long that I have lost _____of most of the sources found for me by the staff of the library.
①
trace
②
trail
③
track
④
touch
【单选题】
The young CEO lost his confidence and felt that hes an ( ).
①
deceiver
②
imposter
③
overseer
④
inferior
【单选题】
They are working hard to____ what they have lost.
①
make out for
②
keep up with
③
catch up with
④
make up for
随机题目
【单选题】
Cyt在呼吸链中的排列顺序是
①
b→c→c<sub>1</sub> →aa<sub>3</sub> →O<sub>2</sub>；
②
c→b<sub>1</sub> →c<sub>1</sub> →aa<sub>3</sub> →O<sub>2</sub>；
③
b→c<sub>1</sub> →c→aa<sub>3</sub> →O<sub>2</sub>；
④
c<sub>1</sub> →c→b→aa<sub>3</sub> →O<sub>2</sub>；
⑤
c→c<sub>1</sub> →b→aa<sub>3</sub> →O<sub>2</sub>
【单选题】
下列对微粒体氧化体系的描述错误的是
①
微粒体氧化酶系是人体内重要的氧化体系
②
微粒体中存在一种特殊的氧化酶系，称为加单氧酶或羟化酶
③
微粒体氧化体系的氧化过程在细胞的线粒体中进行
④
使许多脂溶性药物或毒物发生羟化反应以增加作用物的水溶性而利于排泄
⑤
与体内正常代谢物的氧化有密切关系
【单选题】
下列对非线粒体氧化体系的描述错误的是
①
非线粒体氧化体系以微粒体和过氧化酶体最为重要
②
水的生成不经过呼吸链电子传递
③
氧化过程不伴有ADP的磷酸化
④
不是产生ATP的主要方式
⑤
不是生物转化作用的重要场所