22．Lawrence Craven, a doctor from the USA，is the author of several published reports, one of______ introduced the idea in 1953 ______aspirin could reduce the risk of heart attacks．

A．them; when

B．which; that

C．what; that

D．which; when

参加验收的监理人员全面记录验收过程中存在问题，并对可以现场处理的问题及时要求施工单位处理，记录验收测试结果，并填写相关记录报（）审核后提交至建设单位。

A.现场监理员

B.单项负责人

C.项目经理

D.总监理工程师