假若一批货物的出口总运费为900美元,则出口报关单运费栏应填报为()。 ["502/900/2","502/900/3","330/900/2","330/900/3"]
大肠癌血行转移最常转移至() ["肝","肺","骨","膀胱","肾"]
具有抗早孕作用的成分是() ["A.桔梗皂苷","B.甲硫氨酸","C.半夏蛋白","D.远志酸","E.桔梗多糖"]
确定岩层空间位置时,使用下列中哪些要素?Ⅰ.走向Ⅱ.倾向Ⅲ.倾角() ["Ⅰ和Ⅱ","Ⅰ和Ⅲ","Ⅱ","Ⅰ、Ⅱ和Ⅲ"]
不属于扫描仪的安装过程的是()。 ["关闭计算机上所有打开的程序","将随机带光盘插入计算机","关闭扫描仪","运行安装程序"]
大陆架表面常见的地形有哪些?