梅毒的主要传播途径（）
A.唾液接触
B.性接触
C.飞沫传播
D.血液传播
E.共用餐具
参考答案：B
His mother was born in Green, and Greek was her native language, ___.
A．so it was with his father
B．so did his father
C．so was his father
D．so his father was
销售与收款内部控制的范围包括（）。
A.接受客户订货单
B.分析信用
C.开票发货
D.结算记账
E.催收账款
