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【单选题】
样品在HCl中水解后为什么要用NaOH中和?A.
使溶液呈中性，便于总糖水解
B.
使溶液呈酸性，便于还原糖与碘试剂反应
C.
使溶液呈碱性，便于 还原糖与 DNS试剂反应
D.
以上都不对
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举一反三
【单选题】The first sentence in para. 7 is the topic sentence of____.
A.
para. 7
B.
paras. 7-8
C.
paras. 7-9
D.
paras. 7-10
【单选题】______ is most frequently used for employees who are involved in physically producing a product.
A.
Graphic Rating Scales
B.
Management by Objectives
C.
Production Standards
D.
Critical-incident appraisal
【单选题】Of the following people, who are not involved in the program?
A.
Cisco System employees.
B.
Advice nurses in the clinic.
C.
Doctors at three local hospitals.
D.
Oracle executives.
【单选题】By stating 'I could have had my eyes closed' the author means (Line 7, Para. 3, last sentence) ______.
A.
the third baseman would rather sleep than play the game
B.
the author could close his eyes without watching the game, because it was always the same.
C.
the third baseman is no good at baseball that he could finish the game with eyes closed all the time and do his work well
D.
the consequence was too bad he could not bear to see it
【单选题】Of the following people, who are not involved in the program?
A.
Cisco System employees.
B.
Advice nurses in the clinic.
C.
Doctors at three local hospitals.
D.
Oracle at three local hospitals.
【单选题】The underlined sentence in Para. 7 roughly means that the researchers believe that ______.
A.
mutated genes have a negative influence on Ashkenazim's intelligence
B.
mutated genes have played a role in Ashkenazim's intelligence
C.
the Ashkenazim's high intelligence is caused by the mutated genes
D.
the Ashkenazim's illnesses have greatly handicapped their performance
【单选题】在 “ 资产 = 负债 + 所有者权益 ” 这一会计恒等式的右端,两个因素的位置 ( ) 。
A.
不能颠倒
B.
可以颠倒
C.
没有顺序要求
D.
在一定条件下可以颠倒
【简答题】What have researchers compared the sense of technological dependency to? (Para. 7) They have compared it to__________________________.
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