flower
A: [desk]
B: ['ɔridʒ]
C: ['flaʊə]
D: [kəm'pju:tə]
A: [desk]
B: ['ɔridʒ]
C: ['flaʊə]
D: [kəm'pju:tə]
举一反三
- a.冷的；冷淡的n.冷 A: lab / læb/ B: cold / kəuld/ C: compute / kəm’pju:t/ D: fast / fa:st/
- I’m sorry, she at her desk at the moment. A: is B: are C: isn't
- The printer doesn’t work. Don’t you think it’s about time we ______. it A: will get rid of B: get rid of C: have got rid of D: got rid of
- n.冒险；惊险活动 A: adventure / əd’ventʃə/ B: ensure / in’ʃuə/ C: cɔil / kɔil/ D: pure / pjuə/
- 质量为 m 的物体和劲度系数为 k、原长为 L0 的均匀弹簧组成弹簧振子，弹簧的质量 m’ 较小，但又不能忽略。此弹簧振子自由振动的周期为（ ） A: T = 2π[(m + m’)/k]1/2 B: T = 2π[(m + m’/2)/k]1/2 C: T = 2π[(m + m’/3)/k]1/2 D: T = 2π[(m + m’/6)/k]1/2