麝香治疮疡肿毒,咽喉肿痛,与其何种功效有关()
A.开窍醒神
B.消肿止痛
C.辟秽豁痰
D.清利咽喉
E.活血散结
参考答案:B, E
设有关系模式SC(sno,cno,grade),查询既选修了c1又选修了c2课程的学生学号,正确的SQL命令是( )。
A.SELECT sno FROM sc WHERE cno=“c1”AND cno=“c2”
B.SELECT sno FROM sc WHERE cno=“c1”AND SELECT sno FROM sc WHERE cno=“c2”
C.SELECT sno FROM sc WHERE cno=“c1”UNION SELECT sno FROM sc WHERE cno=“c2”
D.SELECT sno FROM sc WHERE cno=“c1”AND sno IN(SELECT sno FROM sc WHERE cno=“c2”)
个体工商户的经营方式包括()等。
A.代客装卸
B.修理服务
C.培训服务
D.咨询服务