获得资格证券书后超过18个月而未在证券专业岗位上就职,资格自动失效。
参考答案:对
具有普遍约束力的行为规范是[ ]
A.道德
B.法律
C.风俗
D.习惯
Look! Our teacher Mr. Wang is using a ______ to see how fast Li Ming can run. [ ]
A. watch
B. wheel
C. bicycle
D. runner