题目

– I am happy that she has time _________. －________________.A. relaxing more; I have the same feeling B. to relax more; I have the same feelingC. to more relax; I agree with D. relaxing more; I agree 答案：【答案】B【解析】试题句意：我很高兴她有更多放松的时间。我有同感。此处是不定式作定语，故选B。7．点电荷Q在真空中形成的电场中，在距离Q为r的P点的场强E的大小为$\frac{kQ}{{r}^{2}}$．两块靠近的平行金属板，电压为U相距为d，则两块平行金属板内的电场强度为$\frac{U}{d}$．