单项选择题
A.这些材料旨在写给内部人员或要成为工程技术人员而接受培训的人。 B.这些材料或许是为正在接受培训以成为工程技术人员的人编写的。 C.这些材料的对象是那些在职的或正在接受培训的未来工程技术人员。 D.这些材料的目的是使在职的或正在接受培训的人成为工程技术人员。
A. The Development of American "Work Ethic" B. Flexible Working-time Arrangements C. The Work in America D. The Role of Work in America
A. The man could not live to be eighty. B. He was feeling all right. C. The man was familiar with him. D. He wanted the man to shut his mouth.