【C13】A．researchB．questionnaireC．interviewD．experiment

【C13】A．organizationalB．organizationC．organizingD．organized

The conclusion can be deduced from these data.A.researchB.resultC.causeD.process

Paragraph 3__________ 查看材料A.Ongoing ResearchB.Exten

Paragraph 5__________ 查看材料A.Ongoing ResearchB.Exten

Paragraph 6__________ 查看材料A.Ongoing ResearchB.Exten

Palese got the idea to experiment with guinea pigs from______.A．a past researchB．an 80－yea