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- 1桩的侧阻力标准值、桩的极限侧阻力标准值、桩的侧阻力特征值三者有什么区别?
- 2How __ it ___?(happen) We were boating on the lake when she suddenly fell into the water
- 3用20克盐配制成含盐率5%的盐水，应加水_克．
- 4甲乙两船同时从相距400海里的两港相对开出,10小时后两船还相距38海里,甲船每小时行18.8海里问乙的速度?
- 5What should you do ____ (improve) your eating habits?用适当形式填空
- 6物体重力为G，与水平地面的动摩擦因数为μ，在一力的作用下做匀速直线运动，求这个力的最小值及方向．
- 7This is a phone改成一般疑问句
- 8如图,平行四边形ABCD四个顶点的坐标分别是A(√3,√3),B(3√3,√3),C(2√3,0)
- 9向左右两边看,目光迅速地向四周看却带看的词语
- 10jenny likes to swim.用 skip 改为选择疑问句