钢中磷含量增高时会引起钢在低温下的韧性()、塑性()。
参考答案:降低、降低
(1)水-冰-水蒸气
(2)冰-水-水蒸气
(3)水蒸气-水-冰
(4)水-水蒸气-水,
你认为“水”的这几条“旅行”路线中可行的是( )
A.只有(3)
B.只有(2)
C.只有(2)和(3)
D.(1)(2)(3)(4)四条路线都可以
Larry asks Bill and Peter to go on a picnic with him, but ______ of them wants to, because they have work to do.
A.none
B.any
C.either
D.neither