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【判断题】
力偶无合力的意思是说力偶的合力等于零。A.
正确
B.
错误
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【简答题】交际用语。 A: 1______, boy? B: I think I have a cold. I feel terrible. A: 2______ B: No, my body temperature (温度) is all right. But I have a headache and a sore throat. A: Open your mouth and let me see. O...
【单选题】(2017洛阳三模)—You need to go to hospital. Your head ______so hot.—I think I have a fever. I ______terrible.
A.
feel; am feeling
B.
felt; have felt
C.
feels; am feeling
D.
is felt; have felt
【简答题】二次函数图像上任意点P(x,f(x))关于y轴对称的点P'(-x,f(x))与图像上的点P''(-x,f(-x))是____________________关系。
【简答题】vt. 进行、处理、实施
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