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【判断题】
同号离子对溶胶的聚沉起主要作用。是不是?( )A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】I'm not ready yet; can you ______ a minute?
【单选题】Speaker A: ________________ Speaker B: Um, I'm not ready yet.May I have a look at the menu?
A.
Do you want to eat out?
B.
Are you happy today?
C.
Can I take your order,now?
【判断题】Vegetarian
foods are sold very well, especially popular in India, China, Mexico, Italy and
Japan.
A.
正确
B.
错误
【单选题】We didn't get the Snoopy doll because they had been ______. [ ]
A.
sold of
B.
sold off
C.
sold out
D.
sold over
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