理工类：词汇选项
1. Most chemical reactions of an organic compound involve only a few of its numerous atoms and bonds; the remainder stay unchanged.
A) majority
B) distribution
C) rest
D) stability
2. The specific mechanisms by which cortisone and similar compounds function are poorly documented.
A) partially
B) occasionally
C) inadequately
D) rarely
3. Can you account for your absence from the class last Thursday?
A) explain
B) examine
C) excuse
D) expand
4. A limited number of books on this subject are in the library.
A) little
B) small
C) tiny
D) low
5. The company recommended that a new petrol station be built here.
A) ordered
B) insisted
C) suggested
D) demanded
6. Jim has gained so much weight that a lot of his clothes dont fit him any more.
A) put off
B) put down
C) put on
D) put up
7. Foreign money can be converted at this bank.
A) altered
B) changed
C) bought
D) sold
8. Government health campaigns have fostered an awareness of the dangers in certain social habits.
A) included
B) discovered
C) cultivated
D) discouraged