第一学段的重点在于认识方向,会用方位词描述物体所在方向。
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输入/输出域同时具有输入和输出功能。
A. 对
B. 错
画面由静态元件和动态元件组成。
A. 对
B. 错
If you sit in a chair ________a long time, your back may begin to hurt.
A. at
B. in
C. on
D. for
Shanghai Disneyland has started to be built and it will be open ________five years.
A. in
B. for
C. from
D. before
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