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【单选题】
蒽酮类化合物的专属性显色试剂是A.
对亚硝基二甲苯胺
B.
对亚硝基苯甲酸
C.
对二甲氨基苯甲醛
D.
联苯二胺
E.
0.5％乙酸镁
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皮皮学刷刷变学霸
举一反三
【单选题】He told the interviewer that he had run out of money to buy old bikes.
A.
put away
B.
turned off
C.
taken out
D.
used up
【单选题】His promise ________ he would give away half of the year’s income to the disabled turned out a lie, ________ made the public feel cheated.
A.
which; what
B.
that; which
C.
what; which
D.
which; that
【单选题】Obviously, he’s very disappointed at the way things have_____.
A.
turned up
B.
turned out
C.
turned on
D.
turned down
【简答题】A．He ate the honey. B．He drank the beer. C．He chased the people away. D．He turned things upside down.
【简答题】A．He ate the honey. B．He drank the beer. C．He chased the people away. D．He turned things upside down. Section C
【单选题】He promised to come, but he hasn't ______ yet.
A.
turned up
B.
turned over
C.
turned out
D.
turned back
【单选题】What happened to Hamer's research interest?
A.
He turned to basic research.
B.
He sticked to basic research.
C.
He turned to behavioral genetics.
D.
He sticked to behavioral genetics.
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