B01.07e脉冲阀有二个位置:K1位和K2位。通过按K1按钮可以手动()该节车的停放制动。
A、施加
B、缓解
C、不起作用
D、既可施加也可缓解
参考答案:A
One of the most commonly used yield spread measures is the nominal spread. Which of the following is a limitation of nominal spread The nominal spread assumes:()
A. an upward sloping yield curve.
B. a downward sloping yield curve.
C. a flat yield curve.
知识产权保护对于()发挥着不可或缺的作用。
A.激励创新创业
B.促进知识传播
C.信息的获取
D.技术的转移