【简答题】确定以下9级排列的逆序数,从而确定他们的奇偶性。 1)134782695 2)217986354 3)987654321
【简答题】语言是人类交流思想的媒介,是最重要的( )。
【简答题】Packages other than bottles are also undergoing changes. An aluminium company, for instance, announced that packages would soon replace _____ and _________.
【单选题】Why are multiple NAND gates often used in place of other single function gates?
A.
NAND gates are packaged more densely on IC's than other types of gates.
B.
NAND gates are cheaper than any other type of gate.
C.
It is easier to design logic circuits with a single gate type, since you only have to fully understand how one type of gate works.
D.
It makes it possible to use spare portions of NAND IC packages to implement other logic functions, perhaps reducing the total IC package count.
【单选题】For the middlemen, which of the following is NOT true?A.They refer to truck drivers, mea
A.
4:For the middlemen, which of the following is NOT true? A.They refer to truck drivers, meat packers, manufacturers of packages and other food containers, and the owners of stores where food is sold.
B.
Their profit is lower than supposed.
C.
They stand between the farmers and the people who buy and eat the food.
D.
They make the same profit as the farmers.
【单选题】For the middlemen, which of the following is NOT true?
A.
They refer to truck drivers, meat packers, manufacturers of packages and other food containers, and the owners of stores where food is sold.
B.
Their profit is lower than supposed.
C.
They stand between the farmers and the people who buy and eat the food.
D.
They make the same profit as the farmers.
【判断题】语言是人类交流思想的媒介,是最重要的交际工具。