47、ZYJ7型、ZD6型道岔表示输出电源110V。
参考答案:对
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.
袋中有红球、白球共10个,任取3个球,3个都是白球的概率为
(1)白球有6个. (2)白球有7个.
My mother was against my plan while my father was it.
A. in favor of
B. in memory of
C. in need of
D. in search of