单项评价方法是以国家、地方的有关法规、标准为依据,评定与估价各评价项目的( )的环境影响。
A.多个质量参数 B.单个质量参数C.单个环境要素 D.多个环境要素
参考答案:B
从对话后方框内的选项中选择适当的选项补全对话,将其字母代号填入答题栏相应题号的横线上。(共10小题,每小题1分,共10分)
Mother: Did you get your report card today, Scott?
Scott: Uh-huh.
Mother: So, 小题1:
Scott: I did OK in some subjects.
Mother: Well, 小题2:
Scott: He said I could do better.
Mother: 小题3: How about Spanish?
Scott: Oh, Ms Mendoza said I was good at speaking.
Mother: 小题4:
Scott: And Mr Ricardo said I was hard-working.
Mother: 小题5:
Scott: He's my math teacher.
Mother: That's excellent.
什么是循环式光合磷酸化?产物是什么?对光合作用有什么意义?