A.无弯曲
B.无异常
C.无变色
D.无受潮
[单选题]A.2/1B.10/1C.20/1D.50/1E.100/1
[单选题]A.2/1B.10/1C.20/1D.50/1E.100/1
[单选题]A.条件(1)充分,但是(2)不充分。B.条件(2)充分,但是(1)不充分。C.条件(1)和(2)单独不充分,但条件(1)和(2)联合起来充分。D.条
[单选题]A.-4B.-2C.4D.2E.1
[单选题]A.1B.2C.3D.无穷多个
[单选题]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)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.-4B.-2C.4D.2E.1
[单选题]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)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.1B.2C.3D.无穷多个