改错 A cake made of wheat costs less than that made of rice .是

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改错 A cake made of wheat costs less than that made of rice .是把that改为one吗?

对的.是把that改为one
A cake made of wheat costs less than one made of rice.
that 是从 the 变来的,属于定冠词的范围之内,所以它只能代表有定冠词的单数名词,
如 The cost of oil is less than that of gas.
但凡是有不定冠词的单数名词,就不能用 that 代表,只能用 one 代表,
如上举的两个例句：one=a cake,而 that=the cost.
对于有定冠词的单数名词,也并不一定非用 that 代表不可,

改错 A cake made of wheat costs less than that made of rice .是 A cake made of wheat costs less than ---made of rice A one B it is said that a cake made of wheat costs less than ____ ma a cake made of rice tastes better than ( )made of flour 改错句：He has made less mistakes than any of his classmates. The bread is made ____ wheat.A.of B.from a table made of steel costs more than___made of wood a table made of steel costs more than______made of plastic. a carrot cake is made () carrot,of还是from dumplings made up of rice flour Zongzi____【is made of/is made from】sticky rice a sofa made of real leather costs much more than__made of ar