问题
单项选择题
测量所得平均值和被测物真值之间的差称为()
A.精度
B.精确度
C.增殖率
D.重合性
答案
参考答案:A
测量所得平均值和被测物真值之间的差称为()
A.精度
B.精确度
C.增殖率
D.重合性
参考答案:A
从方框中选择适当单词并用其正确形式填空。
He took a lot of luggage(行李)with him. So I got __小题2:__ the train with him and helped him put__小题3:__ his luggage. There were a lot of people on the train. Some of them had no seats and they stood in the aisle(过道). When I __小题4:__to get off the train, one worker shouted, “The train is __小题5:___now. Please get on the train as __小题6:__ as possible.” Then many people tried to get on the train. It was __小题7:__ for me to move. Before I could get off, the train began to move. Then my friend said to me, “Why don’t you go to Beijing with __小题8:__ ? You will have a great time there.” I thought it was not a __小题9:__ idea. So I went to Beijing for the __小题10:__time. |