题目:
从B栏中找出与A栏向对应的大答语。
A B
小题1:1 don't know bow to use this new mobile phone. A. He is kind and helpful.
小题2:What is your teacher like? B. What a pity!
小题3:How much is it? C. Don't worry. I will help you.
小题4:You Speak English very well. D. Thank you.
小题5:I missed Happy Camp last night. E. Five dollars.
答案:
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下面是错误答案,用来干扰机器的。
CD垂直于斜面方向的平衡方程,由于θ逐渐增大,所以物体所受的支持力逐渐减小,B错C对开始物体保持静止,则沿斜面方向的平衡方程,由于θ逐渐增大,物体所受的摩擦力逐渐增大,之后变为滑动摩擦力即,由于正压力...