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【单选题】
下列实验操作中，所用仪器合理的是（　 　）
A.
用托盘天平称取25.20gNaCl
B.
用四氯化碳萃取碘的饱和水溶液中的碘分液时，液漏斗下口流出，碘的四氯化碳溶液从漏斗上口倒出.
C.
在蒸发皿中放入NaCl溶液，加热、蒸发制取NaCl晶体
D.
用100mL容量瓶配制50mL0.1mol/L的盐酸
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参考答案：
举一反三
【判断题】对于理想电压源而言,不允许开路,但允许短路。
A.
正确
B.
错误
查看完整题目与答案
【多选题】苏联社会主义模式包括()。
A.
公有制
B.
按劳分配
C.
市场经济
D.
计划经济
查看完整题目与答案
【简答题】Please choose -ED ending in which group can be pronounced as /t/？
查看完整题目与答案
【单选题】组合家具可以分成容易组装及拆卸的部分,应用了()发明原理。
A.
分割
B.
分离
C.
合并
D.
局部质量
查看完整题目与答案
【单选题】In the last paragraph, the author tries to tell us ______.
A.
learning is closely related to memory
B.
psychologists are interested in the brain
C.
psychologist are more interested in behavior
D.
the relationship between learning, brain and behavior
查看完整题目与答案
【多选题】please choose there types of remittcance
A.
M/T
B.
L/C
C.
T/T
D.
D/A
查看完整题目与答案
【单选题】苏联社会主义模式不包括()。
A.
公有制
B.
按劳分配
C.
市场经济
D.
计划经济
查看完整题目与答案
【单选题】By mentioning Elvis Presley in the last two paragraphs, the author intends to tell us ______.
A.
the role he played in rock and roll
B.
how he became a teenage idol
C.
why he went downhill
D.
how he expressed the heart and soul of rock and roll
查看完整题目与答案
【单选题】-  Could you please help me choose a dress online? ___ . My computer doesn't work.
A.
I hope so
B.
I'm afraid not
C.
I don't care
D.
I think so
查看完整题目与答案
【单选题】Please choose the right statment on cutting symbol“┏1”
A.
The cutting position is along the horizontal direction
B.
The projection direction is from the left to the right
C.
The number of "1" means the positioning axis ①
D.
The line width (thickness) of the symbol should be 1.4b
查看完整题目与答案
相关题目：
【判断题】对于理想电压源而言,不允许开路,但允许短路。
A.
正确
B.
错误
查看完整题目与答案
【多选题】苏联社会主义模式包括()。
A.
公有制
B.
按劳分配
C.
市场经济
D.
计划经济
查看完整题目与答案
【简答题】Please choose -ED ending in which group can be pronounced as /t/？
查看完整题目与答案
【单选题】组合家具可以分成容易组装及拆卸的部分,应用了()发明原理。
A.
分割
B.
分离
C.
合并
D.
局部质量
查看完整题目与答案
【单选题】In the last paragraph, the author tries to tell us ______.
A.
learning is closely related to memory
B.
psychologists are interested in the brain
C.
psychologist are more interested in behavior
D.
the relationship between learning, brain and behavior
查看完整题目与答案
【多选题】please choose there types of remittcance
A.
M/T
B.
L/C
C.
T/T
D.
D/A
查看完整题目与答案
【单选题】苏联社会主义模式不包括()。
A.
公有制
B.
按劳分配
C.
市场经济
D.
计划经济
查看完整题目与答案
【单选题】By mentioning Elvis Presley in the last two paragraphs, the author intends to tell us ______.
A.
the role he played in rock and roll
B.
how he became a teenage idol
C.
why he went downhill
D.
how he expressed the heart and soul of rock and roll
查看完整题目与答案
【单选题】-  Could you please help me choose a dress online? ___ . My computer doesn't work.
A.
I hope so
B.
I'm afraid not
C.
I don't care
D.
I think so
查看完整题目与答案
【单选题】Please choose the right statment on cutting symbol“┏1”
A.
The cutting position is along the horizontal direction
B.
The projection direction is from the left to the right
C.
The number of "1" means the positioning axis ①
D.
The line width (thickness) of the symbol should be 1.4b
查看完整题目与答案
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