钢尺量距时其长度互差应不大于（）毫米。
A.3
B.5
C.5+Bppm×D
D.3+Bppm×D
参考答案：A
—I'm ______ my ball. Do you know where it is?
—Look! It's under the desk.[ ]
A. looking down
B. looking at
C. looking for
修一段路，如果平均分给甲、乙两个队，每队要修35千米，如果按2：3分给甲乙两队修，甲、乙两队各修多少千米？
