Mr. Green tells his children that Father Christmas is a very kind man. He comes on Christmas Eve. He lands on top of each house and comes down the chimney into the fireplace and brings them a lot of presents.
Christmas Day always begins before breakfast. The children wake up very early. They can't wait to open the presents in their stockings. Then they wake up their parents and call: "Merry Christmas!"
Do you know what Christmas means? Christmas Day is the birthday of Jesus Christ. When Christ was born, many people gave him presents. So today, people still do the same thing to each other.
Christmas Eve is ______.
A.the night before December 24
B.the night after December 25
C.the night of December 25
D.the night of December 24
第2题
算术移位指令SAL上用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第3题
算术移位指令SAL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第4题
算术移位指令SAL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第5题
算术移位指令SAL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第6题
算术移位指令SAL用于()。
A.带符号数乘2
B.带符号数除2
C.无书号数乘2
D.无符号数除2
第7题
算术移位指令SAL用于()。
A.带符号数乘2
B.带符号数除2
C.无书号数乘2
D.无符号数除2
第8题
逻辑移位指令SHL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第9题
逻辑移位指令SHL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
第10题
逻辑移位指令SHL用于()。
A.带符号数乘2
B.带符号数除2
C.无符号数乘2
D.无符号数除2
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