皮皮学，免费搜题
登录
搜题
【简答题】
某混合碱滴定至酚酞变色时消耗HCl溶液11.43mL，滴定至甲基橙变色时又用去HCl溶液14.02mL，则该混合碱（）的主要成分是（）。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】My father likes ____ TV. He ____ TV every evening. [ ]
A.
watching; watch
B.
watching; watches
C.
watch; watches
D.
watches; watches
【单选题】What does the man do after supper?
A.
He reads newspapers.
B.
He goes to bed at once.
C.
He watches TV.
【简答题】听短文，选择正确答案。听两遍。 1. What does Tom often do after school? A. He does his homework. B. He watches TV. C. He goes out to play. 2. How old is Tom this year? A. Eleven. B. Nine. C. Ten. 3. How did Tom’s par...
【单选题】有关结核菌素试验,下述 错误 的是
A.
属于皮肤迟发型超敏反应
B.
12 ～ 18 小时观察结果
C.
可检测机体对结核分枝杆菌的免疫状况
D.
皮肤反应程度以局部红肿、硬结的直径为标准
【单选题】听力原文：W: Have you ever seen a lion? M: Only on TV. What does the man mean?
A.
He only watches TV.
B.
There are some lions on top of the TV.
C.
He saw a lion on TV.
D.
There was a TV in his room.
【单选题】By the time a child is five, he _______ hundreds of hours of television.
A.
will watch
B.
will have watched
C.
had watched
D.
is watching
【单选题】He is a key ____________ in the murder so we must protect him from all kinds of danger.
A.
witch
B.
watcher
C.
wizard
D.
witness
【单选题】He ________ volleyball, he only watches it on TV. [ ]
A.
plays
B.
doesn't play
C.
watches
D.
don't watch
相关题目：
【单选题】有关结核菌素试验,下述 错误 的是
A.
属于皮肤迟发型超敏反应
B.
12 ～ 18 小时观察结果
C.
可检测机体对结核分枝杆菌的免疫状况
D.
皮肤反应程度以局部红肿、硬结的直径为标准