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【单选题】
She will be back in ________.A.
a or two days
B.
one or two days
C.
one day and two
D.
one and two day
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【简答题】Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, ...
【简答题】Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, ...
【简答题】图样中,尺寸线和尺寸界线用 画出。
【判断题】191GXGZ．运量小、允许速度低的线路或在隧道内、桥梁上和车站内受建筑物限制时，可酌情低道床厚度，但正线木枕地段碎石道床厚度不得小于200mm，混凝土枕地段不得小于300mm。
A.
正确
B.
错误
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