（ ）不需缴纳营业税。
A．个人转让专利权
B．某明星举办个人演唱会并取得收入
C．个人转让著作权
D．出售已居住一年半的个人住宅
参考答案：C
阿司咪唑与红霉素合用可诱发心脏毒性的原因是
A．阿司米唑使红霉素消除减慢而潴留
B．两者竞争蛋白结合，阿司米唑血浓度升高
C．两者竞争排泄而致血药浓度升高
D．红霉素干扰阿司米唑正常代谢
E．以上各点因素均存在
—I didn’t see her yesterday,I looked for her everywhere,but couldn’t find her.
—Oh,but you .She was working in the office.
A．must have
B．ought to
C．ought to have
D．can’t have
