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【多选题】
在酸碱质子理论中,可作为酸的物质是( )A.
NH4+
B.
HCI
C.
H2SO4
D.
OH-
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举一反三
【单选题】Shakespeare is difficult to understand than contemporary writings because many of his words were used in different ______ from what they have now in dictionaries.
A.
senses
B.
forms
C.
dialects
D.
terms
【单选题】Until the ninth century, written words were not actually separated, ____________in some literary writing, dots or points were used to indicate divisions.
A.
in spite of
B.
contrary
C.
contrast to
D.
but
【单选题】下列实验的解释或结论不正确的是（ ） 选项 实验 解释或结论 A 用激光笔照射水玻璃溶液，有丁达尔现象 SiO 3 2- 水解生成硅酸胶体 B 在新制的氯水中加入碳酸钙粉末，充分搅拌 氯水中HClO的物质的量增加 C 向包有Na 2 O 2 的脱脂棉滴少量水，脱脂棉燃烧 Na 2 O 2 与H 2 O反应放热并有O 2 生成 D 向某溶液中加入稀盐酸，再加入硝酸钡溶液生 成白色沉淀 原溶液中一定...
A.
A
B.
B
C.
C
D.
D
【多选题】下列实验的解释或结论不正确的是 选项 实验 解释或结论
A.
用激光笔照射水玻璃溶液，有丁达尔现象 SiO 3 2 － 水解生成硅酸胶体
B.
在新制的氯水中加入碳酸钙粉末，充分搅拌 氯水中HClO的物质的量增加
C.
向包有Na 2 O 2 的脱脂棉滴少量水，脱脂棉燃烧 Na 2 O 2 与H 2 O反应放热并有O 2 生成
D.
向某溶液中加入稀盐酸，再加入硝酸钡溶液生 成白色沉淀 原溶液中一定存在SO 4 2-
【单选题】Language & Personality If you overheard a conversation on a bus, do you think you could tell, from the words that were used and the topics discussed, the personality of the people who were chatting? W...
A.
True
B.
False
【单选题】Language & Personality If you overheard a conversation on a bus, do you think you could tell, from the words that were used and the topics discussed, the personality of the people who were chatting? W...
A.
True
B.
False
【简答题】微波炉是一种清洁卫生无污染，效率较高的家用电器．某微波炉的铭牌如下表所示．将体积为275ml、初温是20℃的水放入该微波炉中用最大功率加热1min，取出后测得水温是40℃．若水的比热容为4.2×10 3 J/（kg?℃）．求： 防触电保护类型I类 额定容积20L 型号NN-S313WF 电源频率50Hz 额定电压220V 质量12kg 最大功率1100W （1）微波炉加热时，电路中的电流是多少？ ...
【简答题】How many linking words(衔接词) were
used to connect three sentences belong to the problem part? (7.0分)A. One B. Two C. Three D. Four
【单选题】Words were used _____ in some parts of this essay.
A.
unfortunately
B.
lately
C.
inappropriately
D.
girly
【简答题】家用微波炉的微波频率为 _______兆赫,它利用快速变化的 _______ 使食物中有机 分子产生 _______。在此过程中,分子间互相碰撞、摩擦,短时间内产生很大热量
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