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【判断题】
对于JK触发器,若J=K,则可完成T触发器的功能。A.
正确
B.
错误
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反馈参考答案：
举一反三
【多选题】listen and choose the items you have heard
A.
mangoes
B.
tomatoes
C.
potatoes
D.
sugar
E.
orange
F.
lettuce
G.
cracks
【单选题】The author seems m suggest that traditional values ______.
A.
play an insignificant role in solving social problems
B.
are helpful to the elderly when they sue their children
C.
are very important in preserving Asian uniqueness
D.
are significant in helping the Bill get approved
【单选题】单片机C51数据寄存区定义之data是指( )。
A.
片内RAM直接寻址区，0x00～0x7f
B.
片内RAM可间接寻址区，0x00～0xff
C.
片内RAM位寻址区，0x20～0x2F
D.
片外RAM全部空间，0x0000～0xffff
【单选题】– I’m not satisfied with your product. -- ______________.
A.
Thank you.
B.
What seems to be the problem?
C.
That’s all right.
D.
Fine.
【简答题】物体的颜色基本上是由它的漫反射系数决定的。如果kd=(0.8,0.4,0),光源是蓝色的,物体是什么颜色?
【单选题】单片机C51数据寄存区定义之data是指( )。
A.
片内RAM直接寻址区，0x00～0x7f
B.
片内RAM可间接寻址区，0x00～0xff
C.
片内RAM位寻址区，0x20～0x2F （题外话：在C51中0x2f和0x2F相同吗？）
D.
片外RAM全部空间，0x0000～0xffff
【多选题】Choose the items often included in an itinerary.
A.
tour title
B.
day-to-day events
C.
time arrangement
D.
accomodation
E.
departure and return dates
F.
transport
G.
travel expense
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