计算：2cos45°-(-23)0+(-1)-2-32．-数学

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• II. Grammar & Vocabulary Section ADirections: Beneath each of the following sentences there are
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• . I suggest you buy this one . It is ________ more expensive but it can be used for a longer time .A
• We all agree________his suggestion________the work be done at once. [ ]A. to；thatB. to；whatC. with；t
• Although your son made some mistakes, he worked hard at his lessons. You shouldn’t be hard ______ hi
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• Yosemite National Park has the best collection of native plants. ______, it contains a great number
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