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【单选题】
全球生物燃料产量最高的种类是( )A.
乙醇
B.
甲醇
C.
沼气
D.
页岩气
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反馈参考答案：
举一反三
【简答题】Choose one of the words given below to fill in the blanks. collapse intent antique disguise gasped shifty profitable crude staggered suspiciously The exhausted runner threw himself down a...
【简答题】She felt uneasy _____ asking him to do her a big favor at this moment.
【判断题】[光谱分析法中级第8题]用镨钕滤光片检测分光光度计波长误差时,若测出的最大吸收波长的仪器标示值与镨钕滤光片的吸收峰波长相差3.5nm,说明仪器波长标示值准确,一般不需作校正。()
A.
正确
B.
错误
【单选题】Serenity accepted a position with Creative Concepts in Houston, Texas. Before her first day, she felt uneasy as she was new to the area and company. However, she was delighted to hear she had the oppo...
A.
social
B.
esteem
C.
self-actualization
D.
physiological
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