It was 1995 we began to develop the new computer system.A. whenB. whichC. sinceD. that

发布时间：2020-08-17 09:48:09

It was 1995      we began to develop the new puter system.
A. when
B. which
C. since
D. that

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(答案→)A. when
B. which
C. since
D. that
解析：句意：当我们开发新的电脑系统的时候是1995年。When引导时间状语从句，it指时间，这题容易错选成D，以为是强调句，而强调句的判断方法是去掉强调结构，如果这句话还成立就是强调句，这句话去掉强调句结果后是we began to develop the new puter system1995.可以看出在1995年前面缺少介词in，所以选A。
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