In one of China's severely polluted cities, Tianjin, the smog caused by air pollution sometimes can be heavy enough to limit visibility to within 10 meters. Fortunately, the blank...

1、什么是非法证券期货活动？ 非法证券期货活动是指未经批准从事依法应由证券监管部门或国务院授权的部门核准或批准，应受法定监督的证券发行和经营证券期货业务的活动。开展证券期货业务，需要经中...