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【简答题】
完成反应方程式: (1) (NH 4 ) 2 Cr 2 O 7 (s) Δ (2) Bi(OH) 3 + Cl 2 + NaOH —— (3) Mn 2+ + BiO 3 - + H + —— (4) P 4 + NaOH( 热,浓 ) + H 2 O —— (5) NH 4 Cl + Ca(OH) 2 Δ
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反馈参考答案：
举一反三
【多选题】擦亮明辨是非的“慧眼”,把握事物的本质, ( )
A.
必须掌握透过现象把握本质的方法，识别假象，明辨是非。
B.
需要我们明确判断和衡量是非的标准
C.
必须学会正确地区分真象和假象，不被假象所迷惑
D.
掌握科学思维方法
【单选题】_____ trouble, Ill never tell him anything about the accident.
A.
Rather than caused
B.
Than rather caused
C.
Than rather causing
D.
Rather than cause
【单选题】_______ trouble, I'll forget the whole thing.
A.
Rather than caused
B.
Than rather caused
C.
Than rather causing
D.
Rather than cause
【简答题】Researches in the wild field evaluating the two most common Bt corn plants showed that the toxin absorbed was too ______.
【单选题】强荧光的有机化合物不具备的特征是( )
A.
具有大的共轭 π 键结构
B.
具有非刚性的平面结构
C.
具有最低的单重电子激发态为 型
D.
取代基团为给电子取代基
E.
取代基团为吸电子取代基
【单选题】______ to the climate here, the old couple prefer to live here for the rest of their life rather than move to another city. [ ]
A.
Having accustomed
B.
Accustoming
C.
Accustom
D.
Accustomed
【单选题】It is the interaction between people, rather than the events that occur in their lives that are the main locus of social psychology.
A.
between
B.
rather than
C.
are
D.
of
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