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【单选题】
hare
A.
野猪
B.
野鸭子
C.
野兔
D.
公鸡
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【简答题】The nose is important for everyone. It can help a person breathe and smell. In fact,it can also be used in many popular expressions. Some people can lead other people by the nose. For example, if a wi...
【单选题】Can Rich wait on tables?
A.
Yes, he can.
B.
No, he can't.
C.
no information
【多选题】要测量含【图片】【图片】的水溶液中的【图片】离子的含量,一般不采用如下的哪种电化学分析方法()
A.
电位分析法
B.
直接库仑法
C.
库伦滴定
D.
电增重法
【单选题】在单缝夫琅禾费衍射实验中,若将单缝位置沿透镜光轴方向靠近透镜平移,减小单缝与透镜的距离,则屏幕上的衍射条纹
A.
间距变大.
B.
间距变小
C.
间距不变,但明暗条纹的位置交替变化
D.
没有任何变化.
【单选题】在如图所示的单缝夫琅禾费衍射实验中,若将单缝沿透镜光轴方向向透镜平移,则屏幕上的衍射条纹
A.
不发生变化
B.
间距变大
C.
间距不变,但明暗条纹的位置交替变化
D.
间距变小
【单选题】Mike and Sandy are two woodworkers who both make tables and chairs. In one month, Mike can make 4 tables or 20 chairs, where Sandy can make 6 tables or 18 chairs. Given this, we know that the opportun...
A.
1/5 table for Mike and 1/3 table for Sandy.
B.
1/5 table for Mike and 3 tables for Sandy.
C.
5 tables for Mike and 1/3 table for Sandy.
D.
5 tables for Mike and 3 tables for Sandy.
【简答题】The restaurant can always find tables for its . A) s B) regulars C) visitors D) representatives
【单选题】Mike and Sandy are two woodworkers who both make tables and chairs. In one month, Mike can make 4 tables or 20 chairs, where Sandy can make 6 tables or 18 chairs. Given this, we know that
A.
Mike has a comparative advantage in tables.
B.
Sandy has an absolute advantage in chairs.
C.
Mike has an absolute advantage in tables.
D.
Sandy has a comparative advantage in tables.
【简答题】详述STC15W4K58S4单片机内部集成的SRAM存储器的的功能分区
【判断题】STC15W4K58S4单片机片内集成的A/D器件是双积分式。
A.
正确
B.
错误
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