王某于3月租住李某一套房屋，租期为一年，半年后李某出国，租期届满李某未作任何表示，第二年5月李某回国，要求张某立即搬出，下列选项正确的是 ()
A. 双方没有续订合同，租赁关系消失
B. 第二年3月到5月，双方存在无偿合同关系
C. 从第二年3月起，原合同视为续订一年
D. 从第二年3月起，该合同转变为不定期租赁
查看答案
轴心受压构件中，采用强度很高的高强钢筋是经济的。()
A. 正确
B. 错误
All of the following would necessarily involve mechanical effects EXCEPT
A. using wires to make objects fly
B. fihning each half of a frame. separately
C. hitting a sheet of metal to create thunder
D. building a small model of a town
In England the traffic goes on the different side from China.
A. Right.
B. Wrong.
C. Doesn't say.
One advantage of nano-armed washing machines is that______．
A. one wash-load could be much larger than before
B. the clean-up is done with an additional benefit
C. cleaning powder is no longer necessary
D. a lot of water could be saved
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