Strong typhoons hit this area very ____. Normally, they form and come here between July and August every

year. [ ]

A. generally

B. regularly

C. usually

D. suddenly

现行《中华人民共和国海关法》是经( )全国人民代表大会修改的。

A．第七届

B．第八届

C．第九届

D．第十届