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题目内容
（阿坝师范学院大学英语）
Many of us visited the industrial exhibition, __________, to our disappointment, we saw very few high-tech products. [
A、 ] as [
B、 ] which [
C、 ] where [
D、 ] that
A、 ] as [
B、 ] which [
C、 ] where [
D、 ] that
参考答案