【单选题】下列关于金属型铸造的描述中不正确的是:
A.
用金属型铸造生产的铸件其精度高于砂型铸造铸件;
D.
为了降低铸件成本,金属型铸造最好用于成批生产,不要用于单件生产。
【单选题】人力资源规划的原则有:整体性原则、统一性原则、超前性原则、( )。
【多选题】视频中提到的人力资源规划的原则有( )。
【单选题】As you wander through the streets, you see thousands of masks but you have no idea_____ the faces behind them look like.
【简答题】If you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers. These great forests are the oceans of trees. There are thousands and thousands of d...
【单选题】You can see ________ birds in the park. [ ]
【简答题】PLD的每个输出是其输入的______。
【简答题】作业1、阅读课本第6页“礼仪小故事——丰子恺教子”,说一说礼仪的作用有哪些?