皮皮学，免费搜题
登录
搜题
【单选题】
将a g光亮的铜丝在酒精灯上加热后，迅速插入下列溶液中，然后取出干燥，如此反复几次，最后取出铜丝，洗涤、干燥后称其质量为b g。下列所插入的物质与铜丝质量关系不正确的是 [ ]A.
无水乙醇：a＝b
B.
石灰水：a＞b
C.
NaHSO 4 溶液：a＞b
D.
盐酸：a＞b
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
【简答题】Dr. Smith hopes to make this device smaller so as to help the blind navigate unfamiliar places:
【单选题】The researcher hopes to assess the degree ______ these tools help solve real-world problem
A.
that
B.
to that
C.
which
D.
to which
【简答题】如果股票市场价格处于震荡、波动状态之中，恒定混合策略劣于买人并持有策略。（ ）
【单选题】Dr. Smith hopes to make this device smaller so as to help the blind navigate unfamiliar places.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Dr. Smith hopes to make this device lighter so as to help the blind navigate unfamiliar places.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】Many people are i____(理解)the minister’s action as a sign to resign.
相关题目：
【简答题】Dr. Smith hopes to make this device smaller so as to help the blind navigate unfamiliar places: