[单选题]下列事项由各单位通过政府采购计划管理系统逐级报财政部审批：对达到公开招标数额标准的采购项目需要采用公开招标以外的采购方式的；(　　)；法律、行政法规规定其他需要审批的事项。
A.采购进口产品
B.采购国产产品
C.采购国外产品

The changes in language will continue forever, but no one knows sure 1. ______
who does the changing. One possibility is that children are responsible. A
professor of linguistic at the University of Hawaii, explores this in one of his 2. ______
recent books. Sometimes around 1880, a language catastrophe occurred in 3. ______
Hawaii when thousands of emigrant workers were brought to the islands to 4. ______
work for the new sugar industry. These people speaking different languages
were unable to communicate with each other or with the native Hawaiians or
the dominant English-speaking owners of the plantations. So they first spoke
in Pidgin English-- the sort of thing such mixed language populations have 5. ______
always done. A pidgin is not real]y a language at all. It is more like a set of
verbal signals used to name objects and without the grammatical rules needed
for express