【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】
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
【单选题】
The pavilions of each country at the World Expo can reveal the ( ) cultures of the world.
①
diversity
②
diversify
③
divert
④
diverse
【单选题】
8.Doctors ___ in every part of the world.
①
need
②
are needing
③
are needed
④
will need
【单选题】
China has a large population than [填空] in the world.
①
all the countries
②
every country
③
any country
④
any other country
【单选题】
23．蹄的解剖结构
①
A．由蹄表皮(蹄匣)和蹄真皮(肉蹄)构成
②
B．蹄匣无血管、神经，可分为蹄壁角质、蹄底角质、蹄球角质
③
C．蹄真皮富含血管、神经，可分为蹄壁真皮、蹄底真皮、蹄球真皮
④
D．马蹄的蹄球是楔形，称蹄叉
⑤
E．以上全是
【单选题】
It is _____________ that today people in some remote areas know about the rest of the world.
①
difficult
②
amazing
③
inferior
④
superior