问题
单项选择题
通过化验选别作用产品品位进行计算的产率和回收率分别是()产率和()回收率。
A、理论
B、实际
答案
参考答案:A
通过化验选别作用产品品位进行计算的产率和回收率分别是()产率和()回收率。
A、理论
B、实际
参考答案:A
根据对话内容,从下面方框中选择适当的单词或词组填空,使对话内容完整正确。
A: Did you 小题1: the terrible natural disaster in Japan last month? B: Yes. My online friend told me about it on March12th—the day after the disaster. A: I was shocked by the news when I searched the 小题2: that afternoon. A lot of people lost their lives and many more 小题3: after the earthquake. B: ![]() A: Many buildings were washed away by the sea water. B: My friend lost his daughter in the disaster. He was so sad about that. I 小题5: hear that. What do you think we can do to help people in Japan? A: Let’s ask more people to donate some food, clothes or money to them. B: OK. Let’s go. |