【单选题】【消耗次数：1】
下列物质不是胶体的是
①
淀粉溶液
②
烟雾
③
红色玻璃
④
浓糖水
参考答案：
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相关题目
【单选题】
糖浆剂系指含有中药提取物的浓蔗糖水溶液，一般含蔗糖量应不低于
①
20%(g/ml)
②
35%(g/ml)
③
45%(g/ml)
④
50%(g/ml)
⑤
65%(g/ml)
【单选题】
下列物质的溶液呈碱性的是（）。
①
<img class="kfformula" src="20200629/1593414817730024.png" data-latex="{NH}_{4}{NO}_{3}" width="89" height="29"/>
②
<img class="kfformula" src="20200629/1593414817960955.png" data-latex="{CH}_{3}COOH" width="99" height="32"/>
③
<img class="kfformula" src="20200629/1593414817929066.png" data-latex="{Na}_{2}{SO}_{4}" width="69" height="36"/>
④
<img class="kfformula" src="20200629/1593414817102788.png" data-latex="{Na}_{2}{CO}_{3}" width="65" height="31"/>
随机题目
【单选题】
He didnt seem to mind_____the music while he was studying.
①
them listening
②
them to listen to
③
when she returned
④
that did she return
【单选题】
_____all the representatives still not there,the meeting was postponed for several hours.
①
Because
②
With
③
By
④
Without
【单选题】
Ive been telling you_____not to do that,but you neve listened to me.Thats why you got into trouble.
①
at times
②
time before time
③
time and again
④
for the time being