Choose the right table manners.
A. Start with the knife, fork or spoon that is nearest from your plate.
B. Start with the knife, fork or spoon that is farthest from your plate.
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______ matters is to have a conversation with guests.
A. Which
B. That
C. What
A simple rule to remember is ______ liquids are to the right and solids are to the left.
A. which
B. that
C. what
If Nelson holds a dinner to treat David, then we can say Nelson is the ____?
A. host
B. guest
C. waiter
题号：38360设有： double x,y;则以下正确的输入语句是：
A. scanf("%lf,%lf",&x,&y);
B. scanf("%lf,%lf", x, y);
C. scanf("%d,%d",&x,&y);
D. scanf("%f,%f",&x,&y);
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