【单选题】酶分子中使底物转变为产物的基团称为( )
【单选题】He changed his name, ______ that nobody would find out what he had done before.
【简答题】Nowadays more and more people spend their leisure time traveling, having sightseeing of the beautiful spots and places of historic interest. The Three Gorges on the Yangtze River are a must for visito...
【简答题】Write down the word according to the explanation. 1. ____________ n. the quality of knowing and understanding a lot about a complicated subject 2. ____________ v. to change or modify 3. ____________ad...
【单选题】What is not right about the man and woman?
A.
They are husband and wife.
B.
They are having their honeymoon.
C.
They have been married for a long time.
D.
They are staying in a hotel.
【单选题】Are you a dancer?
B.
No, I am not a dancer. I am a musician.