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【简答题】
20种常见氨基酸中,属于芳香族氨基酸的是( )、( )、( ),用三联体简写表示。
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反馈参考答案：
举一反三
【多选题】以下说法正确的有?( )
A.
信息是被反映事物属性的再现。信息不是事物本身，而是由事物发出的消息、指令、数据等所包含的内容。
B.
知识是人类认识的成果和结晶，是人类在认识和改造世界的社会实践中获得的对事物本质的认识。
C.
情报是人们在一定时间内为一定目的而传递的具有使用价值的知识或信息。
D.
文献是各种知识或信息载体的总称。其由知识信息内容、载体材料和记录方式三要素组成。
【简答题】校正电车线导线面,消除导线扭曲的工具为电车线()
【单选题】His story is ____ his own experience when he was studying in Harvard University. [ ]
A.
based in
B.
based on
C.
basing on
D.
basing in
【单选题】His new novel is _____ his own experience when he was studying in Harvard University. [ ]
A.
based in
B.
basing in
C.
basing on
D.
based on
【单选题】His attitude toward social welfare legislation, based entirely on his perception of himself as a self-made man, ______ him the support of the voters in the state's economically depressed.
A.
earned
B.
cost
C.
divested
D.
evoked
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