The chart above shows how Jeff spent his earnings for one year. How much did Jeff spend for clothing (1)He spent $18 during the year on tennis balls. (2)He spent $190 during the year on recreation
A: 条件(1)充分,但条件(2)不充分.
B: 条件(2)充分,但条件(1)不充分.
C: 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D: 条件(1)充分,条件(2)也充分.
E: 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
A: 条件(1)充分,但条件(2)不充分.
B: 条件(2)充分,但条件(1)不充分.
C: 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D: 条件(1)充分,条件(2)也充分.
E: 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
举一反三
- A:条件(1)充分,但条件(2)不充分. B:条件(2)充分,但条件(1)不充分. C:条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D:条件(1)充分,条件(2)也充分. E:条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分. 已知{an
- A:条件(1)充分,但条件(2)不充分. B:条件(2)充分,但条件(1)不充分. C:条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D:条件(1)充分,条件(2)也充分. E:条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分. 数列{an
- A:条件(1)充分,但条件(2)不充分。 B:条件(2)充分,但条件(1)不充分。 C:条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分。 D:条件(1)充分,条件(2)也充分。 E:条件(1)和(2)单独都不充分,条件(1)和条件(2)联合起来也不充分。 设等比数列{an
- A<1.() A: 条件(1)充分,但条件(2)不充分. B: 条件(2)充分,但条件(1)不充分. C: 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D: 条件(1)充分,条件(2)也充分. E: 条件(1)和(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
- a>b() (1)2b>a (2)(a-b)2=1 A: 条件(1)充分,但条件(2)不充分. B: 条件(2)充分,但条件(1)不充分. C: 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D: 条件(1)充分,条件(2)也充分. E: 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.