金属材料的()是指受冲击载荷作用而不破坏的性能。 ["耐磨性","强度","硬度","韧性"]
The complex form-function relationship is not a simplified, a one-to-one().
中国住宅销售价格指数由70个大中城市的新建住宅销售价格指数和二手住宅销售价格指数组成()
安全状况等级定为4级的压力容器可以()使用。 ["正常","继续","监控"]
()are represented by phonetic symbols because there is no one-to-one correspondence between written letters and spoken sounds.
简述秘书处理与新闻媒介关系的方法。