[填空题] The usual recommendation for a bad back was to put a board under the mattress or buy a bed that’’s as a board and just as uncomfortable. However, sleep researchers recognize that 【B1】 support comes from a surface that contours (轮廓，等高线) to your natural 【B2】 with the right degree of 【B3】 for correct skeletal support. Many so-called "orthopaedic (整形外科的)" beds have just ordinary coil (盘绕) springs made heavier and hard. The 【B4】 and support is flat and 【B5】 and unnatural. The spine is forced up but this 【B6】 pressure points on the soft parts of the body which tend to 【B7】 blood flow. So you toss and turn to 【B8】 pressures and seek comfort. Sleep is 【B9】. Slumberland experts have developed a spring form that is now 【B10】 worldwide. Instead of 【B11】 coils it is an 【B12】 system of support 【B13】 from supple steel wire. The whole system works together to 【B14】 your weight 【B15】. You get firm healthy support for your back, particularly the 【B16】 of the back. Slumberland ORTHOFIRM (
A. A．cut off
B．cut in
C．cut open
D．cut down

[填空题] The usual recommendation for a bad back was to put a board under the mattress or buy a bed that’’s as a board and just as uncomfortable. However, sleep researchers recognize that 【B1】 support comes from a surface that contours (轮廓，等高线) to your natural 【B2】 with the right degree of 【B3】 for correct skeletal support. Many so-called "orthopaedic (整形外科的)" beds have just ordinary coil (盘绕) springs made heavier and hard. The 【B4】 and support is flat and 【B5】 and unnatural. The spine is forced up but this 【B6】 pressure points on the soft parts of the body which tend to 【B7】 blood flow. So you toss and turn to 【B8】 pressures and seek comfort. Sleep is 【B9】. Slumberland experts have developed a spring form that is now 【B10】 worldwide. Instead of 【B11】 coils it is an 【B12】 system of support 【B13】 from supple steel wire. The whole system works together to 【B14】 your weight 【B15】. You get firm healthy support for your back, particularly the 【B16】 of the back. Slumberland ORTHOFIRM (
A. A．unhealthy
B．healthful
C．harmless
D．natural