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【简答题】
试翻译下面一段话。切忌抄袭,切忌直接利用翻译软件。 Description of Energy Pyramids Describe the paper clips as being "energy units" in a food chain. Give students in the first row three paper clips each and the rest of the students in the class one paper clip. Beginning with the second row (primary consumers), each person in that "trophic level" must find and take three "energy units" from the next "lower trophic level" (i.e., people in the row in front of them). Each person in that higher trophic level then must pay the instructor two energy units to stay alive. If an individual has two or fewer energy units, they are "deceased" and do not participate in the next step. Continue to the next higher trophic level (next row back) until there is a row where only one person has clips left to pay to stay alive (usually about four to six rows from the front). Have the students who stayed alive in each row raise their hands to show the pyramid.
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举一反三
【多选题】表面活性剂在药剂上可作为
A.
湿润剂
B.
乳化剂
C.
起泡剂
D.
助溶剂
E.
增溶剂
【多选题】表面活性剂在药剂上可作为
A.
润湿剂
B.
乳化剂
C.
助悬剂
D.
洗涤剂
E.
增溶剂
【单选题】某车检查一套火花塞时,发现一个火花塞严重烧坏,以下哪种原因最易导致这个问题( )
A.
火花塞电线断路
B.
活塞环磨损
C.
多缸同时点火
D.
凸轮轴磨损
【判断题】云计算系统离不开网络。()
A.
正确
B.
错误
【单选题】“行过滤”在节点存储器的哪里能找到 ?
A.
Manipulation-Row_Filter
B.
Manipulation-Row_Transform
C.
Manipulation-Row_Other
D.
Manipulation-PMML-Ruleset Editor
【多选题】表面活性剂在药剂上可作为
A.
润湿剂
B.
乳化剂
C.
防腐剂
D.
洗涤剂
【多选题】表面活性剂在药剂上可作为
A.
湿润剂
B.
乳化剂
C.
防腐剂
D.
洗涤剂
【多选题】表面活性剂在药剂上可作为:
A.
湿润剂
B.
乳化剂
C.
防腐剂
D.
助溶剂
【多选题】表面活性剂在药剂上可作为
A.
润湿剂
B.
乳化剂
C.
消毒剂
D.
洗涤剂
E.
稀释剂
【多选题】表面活性剂在药剂上可作为( )
A.
湿润剂
B.
乳化剂
C.
防腐剂
D.
洗涤剂
E.
助溶剂
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