(单选题)10: I don't know whether you happen____________, but I am going to study in the U.S.A this September. A: to be heard B: to be hearing C: to hear D: to have heard ...

(单选题)23: Helen had to shout____________above the sound of the musi## A: making herself hear B: to make herself hear C: making herself heard D: to make herself heard ...

(单选题)11: By the end of 2020 China ____________much stronger and richer. A: will become B: would become C: is becoming D: will have become ...

(单选题)5: No one can avoid ____________by advertisements. A: to be influenced B: being influenced C: influencing D: having influenced ...

(单选题)24: We all believe that computer____________ smaller and smaller in the coming years. A: can be become B: will be got C: will be changed D: can turn ...

(单选题)18: The President____________ went to see the flood-stricken areas. A: himself B: did C: is said D: has ...

(单选题)12: Middle school boys____________not to smoke. A: always tell B: are told always C: are always told D: is always told ...

(单选题)6: As a result of my laziness, I failed____________my work in time. A: and finished B: to finish C: and finishing D: to finished ...

(多选题)12: 以下属于数据冗余的类别的是（ ）。 A: 空间冗余 B: 时间冗余 C: 结构冗余 D: 知识冗余 ...

(多选题)18: 多媒体技术研究的媒体对象主要有文本、图形、（ ）等。 A: 图像 B: 声音 C: 动画 D: 视频图像 ...