不经过一步一步思考而突如其来的领悟与理解属于()
A.形象思维
B.逆向思维
C.分析思维
D.直觉思维
参考答案:D
_____they _____ to go to the museum when they were children? [ ]
A. Did; use
B. Are; used
C. Did; used
液态烃分馏过程按操作压力划分为()。
A、加压精馏
B、减压精馏
C、常压精馏