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【单选题】
维生素E的乙醇溶液与硝酸共热
A.
绿色
B.
血红色
C.
橙红色
D.
紫色
E.
黄绿色
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参考答案：
举一反三
【单选题】下列哪一项不属于观察法的特点？
A.
观察方案设计得好可以增加信息的准确性
B.
信息可以在正常实地情况下获得
C.
不依赖于实际观察者的交流能力
D.
观察的行为具有连续性
查看完整题目与答案
【单选题】Have you ever heard the old saying 'Never judge a egg by its shell'? This is a good rule to follow when trying to judge the intelligence(智力) of others. Some people have minds that shine only in certai...
A.
a good writer is always a good speaker
B.
a good writer may not be a good speaker
C.
a good writer will find himself speechless
D.
a speechless person always writes well
查看完整题目与答案
【单选题】Do you agree to the old saying ______ absence makes the heart grow fonder?
A.
since
B.
when
C.
that
D.
as
查看完整题目与答案
【单选题】以下哪项不属于观察法的优点？（）
A.
科学研究最基本的方法
B.
收集第一手资料的最直接的手段
C.
观察法在自然状态下进行
D.
观察法与其他方法不配合使用
查看完整题目与答案
【简答题】如图，已知直线y= x+2与坐标轴交于A、B两点，与双曲线y= 交于点C，A、D关于y轴对称，若S 四边形OBCD =6，则k=____．
查看完整题目与答案
【单选题】Have you ever heard the old saying 'Never judge a egg by its shell'? This is a good rule to follow when trying to judge the intelligence (智力) of others. Some people have minds that shine only in certa...
A.
a good writer is always a good speaker
B.
a good writer may not be a good speaker
C.
a good writer will find himself speechless
D.
a speechless person always writes well
查看完整题目与答案
【单选题】The old saying"Don't do as I do, do as I tell you"
A.
is very useful.
B.
is true.
C.
doesn't work most of the time.
D.
is very efficient.
查看完整题目与答案
【单选题】The old saying that you should live each day_________it was your last is a nice view.A．only ifB．e
A.
34．The old saying that you should live each day_________it was your last is a nice view. A．only if
B.
even if
C.
as long as
D.
as though
查看完整题目与答案
【单选题】下列哪一项不属于观察法的特点?
A.
观察结果信息准确性较高；
B.
信息可以在正常实地情况下获得；
C.
观察的行为具有连续性；
D.
不依赖观察者的交流能力；
查看完整题目与答案
【简答题】已知抛物线 与y轴交于点C,则点C的坐标是（      ）；若 点C′是点C关于该抛物线的对称轴对称的点，则 点的坐标是（      ）.
查看完整题目与答案
相关题目：
【单选题】下列哪一项不属于观察法的特点？
A.
观察方案设计得好可以增加信息的准确性
B.
信息可以在正常实地情况下获得
C.
不依赖于实际观察者的交流能力
D.
观察的行为具有连续性
查看完整题目与答案
【单选题】Have you ever heard the old saying 'Never judge a egg by its shell'? This is a good rule to follow when trying to judge the intelligence(智力) of others. Some people have minds that shine only in certai...
A.
a good writer is always a good speaker
B.
a good writer may not be a good speaker
C.
a good writer will find himself speechless
D.
a speechless person always writes well
查看完整题目与答案
【单选题】Do you agree to the old saying ______ absence makes the heart grow fonder?
A.
since
B.
when
C.
that
D.
as
查看完整题目与答案
【单选题】以下哪项不属于观察法的优点？（）
A.
科学研究最基本的方法
B.
收集第一手资料的最直接的手段
C.
观察法在自然状态下进行
D.
观察法与其他方法不配合使用
查看完整题目与答案
【简答题】如图，已知直线y= x+2与坐标轴交于A、B两点，与双曲线y= 交于点C，A、D关于y轴对称，若S 四边形OBCD =6，则k=____．
查看完整题目与答案
【单选题】Have you ever heard the old saying 'Never judge a egg by its shell'? This is a good rule to follow when trying to judge the intelligence (智力) of others. Some people have minds that shine only in certa...
A.
a good writer is always a good speaker
B.
a good writer may not be a good speaker
C.
a good writer will find himself speechless
D.
a speechless person always writes well
查看完整题目与答案
【单选题】The old saying"Don't do as I do, do as I tell you"
A.
is very useful.
B.
is true.
C.
doesn't work most of the time.
D.
is very efficient.
查看完整题目与答案
【单选题】The old saying that you should live each day_________it was your last is a nice view.A．only ifB．e
A.
34．The old saying that you should live each day_________it was your last is a nice view. A．only if
B.
even if
C.
as long as
D.
as though
查看完整题目与答案
【单选题】下列哪一项不属于观察法的特点?
A.
观察结果信息准确性较高；
B.
信息可以在正常实地情况下获得；
C.
观察的行为具有连续性；
D.
不依赖观察者的交流能力；
查看完整题目与答案
【简答题】已知抛物线 与y轴交于点C,则点C的坐标是（      ）；若 点C′是点C关于该抛物线的对称轴对称的点，则 点的坐标是（      ）.
查看完整题目与答案
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