混凝土强度与水泥标号的关系属于()。
A.质量特性与影响因素的关系
B.影响因素与影响因素的关系
C.质量特性与质量特性的关系
参考答案:C
She ______ to Africa to study the animals there, even though her family asked her not to.
A.insisted on going
B.insisted going
C.insisted in going
D.insisted to go
干式电抗器接线端子与设备引线连接时,当额定电流超过()及以上时,引出线固定采用非磁性金属材料制成的螺栓
A.1200A
B.1500A
C.1600A
D.1800A