A. fishing capacity is further increased B. fishing jobs are further increased C. fewer well-equipped fishing ships are used D. fewer species are allowed to rebuild 参考答案:C 答案解析:[解析]末段点明了keep the balance between jobs and the environment的方法即"for each $1 million of investment,ind
第34题: [多项选择]下列关于常用建筑钢材说法正确的有()。 A. 常用的热轧圆盘条主要有Q215、Q235两种牌号 B. 常用的热轧光圆钢筋级别为Ⅰ级,强度等级代号为Q215 C. 常用的余热处理钢筋级别为Ⅲ级,强度等级代号为KL400 D. 钢绞线按极限强度主要有1570MPa和1860MPa两种 E. 预应力钢丝分为光面钢丝、刻痕钢丝和螺旋肋钢丝等 参考答案:A, C, D, E