《帝国主义是资本主义的最高阶段》一书是()研究当时世界政治、经济和国际关系的名著,具有划时代的意义。
A.马克思
B.恩格斯
C.列宁
D.马克思和恩格斯
参考答案:C
In the United States, people eat ______ vegetables per person today as they did in 2000. [ ]
A. more than twice
B. as twice as many
C. twice as many as
D. more than twice as many
准备功能符号“G00”的功能是()。
A.直线插补
B.快速行程定位
C.暂停