from a single point in the subject to focus on a single point in the image, as a consequence of their passing through a series of transparent (透明的) elements with precisely curved surfaces.
第1题
after you fall into slumber, your brain activity level will increase again slightly。
第2题
A) which B) on which C) in which D) whenever
第3题
A) any other boy in the class
B) any boy in the class
C) all boys in the class
D) you and me as well as the class
第4题
.
A) since B) when C) until D) before
第5题
.
A) Compared with B) Compared C) Comparing with D) Comparing
第6题
.
A) has destroyed their hut B) to destroy their hut
C) having destroyed their hut D) being destroyed
第7题
.
A) Hardly had he arrived B) Hardly he had arrived
C) No sooner did he arrive D) No sooner arrived he
第9题
.
A) went B) could go C) was gone D) could have gone
第10题
.
A) most of which B) which C) most of them D) most of whom
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