炭疽的预后以下哪型最差
A．皮肤炭疽B．肺炭疽C．肠炭疽D．口咽部炭疽E．炭疽脑膜炎
参考答案：B
John has great singing _____________, but to become a real singer, he needs a lot of necessary training and practice.
A．privilege
B．potential
C．promotion
D．possibility
什么叫现金价值？现金价值系数对客户来说很不合理，可否去掉？
