题目

请认真阅读表格，并根据表格选择最佳答案【1】On ______, Paula usually gets up at 7:10 a.m.A. Thursdays B. Wednesdays C. weekdays D. weekends【2】. Pizza is a kind of ______.A. drink B. fruit C. toy D. food【3】Paula’s favourite sport is ______.A. volleyball B. table tennis C. yo-yo D. soccer【4】On Wednesday evenings Paula usually ______.A. watches TV B. does her homework C. washes her clothes D. goes to see her friends【5】Which is wrong? ______A. Paula goes to school from Monday to Friday. B. Paula goes to bed after ten o’clock.C. Paula has sports in the aftern5．如图，轻杆OA可绕O点自由转动，用细线将15N的重物挂在A处，小林在B处用竖直向上的拉力提住轻杆，OB和BA长度之比为3：5，下列问题中，轻杆始终在水平位置处于平衡．（1）此杠杆类型与钓鱼竿相同（选填“钓鱼竿”或“羊角锤”）；（2）拉力大小为40N；（3）若仅增加物重，则拉力的变化量与物重的变化量之比为8：3；（4）若拉力方向变为图中虚线所示方向，则拉力将变大．