粗线宽度b应按图的大小和复杂程度,在()之间选择。
A.0.5~2mm
B.0.5~2cm
C.1~2mm
D.0.75~5mm
参考答案:A
You are _______ twenty—two . You should have more test .
A.not ---any longer
B.no longer
C.not---any more
D.no more
宿舍不得()电线,严禁使用电炉等大功率用电器取暖、做饭