问题
单项选择题
按照1~2位有效位数,对测量结果不确定度的数值进行修约时,一般要将最末位后面的数()。
A.四舍五入
B.化整为零
C.都进位而不是舍去
D.都舍去而不是进位
答案
参考答案:C
按照1~2位有效位数,对测量结果不确定度的数值进行修约时,一般要将最末位后面的数()。
A.四舍五入
B.化整为零
C.都进位而不是舍去
D.都舍去而不是进位
参考答案:C
根据句意从方框中选用合适的词,并用其适当形式填空,使句子通顺。 | |
2. Of all the questions, this is _____ one. 3. Mike answered the questions _____ but we decided to give him another chance (机会). 4. A young man _____ John has given us a lot of help. 5. They want to be fashion _____ and work in Paris. 6. On the _____ day of our trip, we went to the Great Wall. |