8～9m钻铤的校直标准每米弯曲度要小于（）。
A.5mm
B.3mm
C.2mm
D.1.5mm
参考答案：D
Soon they could see steam _______ from the wet clothes．
A．rise
B．rising
C．risen
D．be rising
检规中规定固定式杠杆秤的灵敏度越大越好。
