对于大型复杂的产品，应用价值工程的重点是在产品的( )阶段。
A．可行性研究
B．研究设计
C．实施生产
D．质量保证
参考答案：B
根据短文意思和所给首字母，写出一个完整正确的单词。
Every minute of the day someone somewhere needs blood, maybe a 小题1:s baby, or
someone’s mum or dad, so it is not just for emergencies and 小题2:a They need blood tohelp them beat diseases like cancer, or do a planned operation. And that’s 小题3: w we needpeople to give blood, 3 times a year if you can. If you are in good health,小题4: b the ages of17 and 59 and weigh at least 50kg, you can start小题5:g blood now. And when you act,you’11 see how easy it is lo save someone’s life.
化妆品的保养应注意什么？
