Are the children going ______ a holiday to London?[ ]
A. about
B. with
C. to
D. on
答案:D
In 1957, Noam Chomsky's book. [Sytactic Structures] were published and started______.
A.American structuralism
B.transformational generative linguistics
C.functional linguistics
D.cognitive psychology
管道隔热材料要选择导热系数大的材料。