问题
单项选择题
某河砂质量为1260kg,烘干至恒重时质量为1145kg,此河砂的含水率为()
A.9.12%
B.10.04%
C.4.88%
D.9.76%
答案
参考答案:B
某河砂质量为1260kg,烘干至恒重时质量为1145kg,此河砂的含水率为()
A.9.12%
B.10.04%
C.4.88%
D.9.76%
参考答案:B
完形填空。 | ||||
We are 1_______. We are 2_______ the same (同一的) school. We have a new 3_______. In the classroom you can see 4_______ desks and chairs. There is a map 5_______ the wall. 6_______ map is a map of 7_______. We 8_______ some flowers on the teachers' desk. On a desk you can see two bags. They're 9_______. The red one is Wei Fang's. The green one is 10_______.
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