焊接的通常长度，电阻焊钢管为4mm至（）。
A.12mm
B.12m
C.10mm
D.10m
参考答案：B
—What about this sweater?
—I don't like the color. Please show me _____ one.[ ]
A. other
B. the other
C. another
D. others
办理票据业务，对商品交易合同和发票资料审查，合同签订日应早于发票签发日。（）
