prep121

luojihencha

121.(30905-!-item-!-188;#058&004341)

When the temperature of a gas is increased, it is either accompanied by an increase in pressure if the gas is enclosed in a container, or an increase in volume if the gas is able to expand.

(A) When the temperature of a gas is increased, it is either accompanied by an increase in pressure if the gas is enclosed in a container, or

(B) When the temperature of a gas is increased, it is accompanied either by an increase in pressure if it is enclosed in a container or

(C) When the temperature of a gas is increased, the increase is either accompanied by an increase in pressure if the gas is enclosed in a container or by

(D) Any increase in the temperature of a gas is either accompanied by an increase in pressure if it is enclosed in a container, or by

(E) Any increase in the temperature of a gas is accompanied either by an increase in pressure if the gas is enclosed in a container or by

答案是E请问C有什么问题？

wxxgw27

选E，用平行排除 either~or~前后平行BD一次排 除C either后面的 accompanied 位置不对也不平行，A同理而且A  accompanied 和 an increase 词性不同没法平行
When适当～时候的意思不能乱用啊！个人理解哦