【简答题】读一读,画一画。 1. This is my brother. He wears glasses. 2. It's my favourite toy. It's purple. 3. My telephone number is eight, six, three, zero, nine, five. 4. How many cars are there? There are twelve. 5...
【简答题】—This is my brother. ---What’s _________name? A. her B .his C. your
【单选题】This is my brother. These are ________ socks.
【多选题】在拟定氧化还原滴定滴定操作中,属于滴定操作应涉及的问题是
C.
用自身颜色变化,还是用专属指示剂或用外加指示剂确定滴定终点
【单选题】This is my brother. ________ is my classmate.
【多选题】在拟定氧化还原滴定操作中,属于滴定操作应涉及的问题是( )