题目内容：

Cloze

Have you ever heard of cryosurgery? Cryosurgery involves freezing tissues to extremely cool temperatures. It is a procedure in which ______ body tissues are destroyed by ______ them to extremely cold temperatures. The temperatures used range from -150℃ to absolute zero. The surgical procedure freezes unhealthy tissues, and the freezing destroys the _______. For external injuries, liquid nitrogen (氮), which has a temperature of -196℃, is applied ______ to the cells. For  internal tumors (内部肿瘤), liquid nitrogen is circulated( 流通), through an instrument(仪器) called a cryoprob (冷冻探针), a low-temperature probe(探针), cooled by liquid nitrogen.

How does cryosurgery destroy cells? The ice created by the liquid nitrogen will destroy nearly all cells that it _______ in contact with. As ice forms around a cell, the free water inside the cell is ______. This causes the cell to shrink and the walls inside the cell to collapse. Poisonous proteins or chemicals within the cell are released. ______, as the ice around shrunken(收缩) cells begins to melt(融化), large amounts of free water rush back inside the cells, causing them to burst. The dead cells are then removed through normal ________ process.

How well does cryosurgery work? The procedure(过程) has proved successful in removing some tumors. Cryosurgery may be used _______ to remove freckles (for cosmetic reasons) and to treat some skin cancers. It is also used in the treatment of bone cancer to freeze internal bone hollow. Cryosurgery has developed from the _______ attempts to freeze tissues with a salt-ice mixture in the 1850s to the complicated cryoprobe method used today. Despite its success, side effects from cryosurgery tend to be worse if it is done in men who have already had radiation therapy(辐射疗法). Therefore this kind of new surgery is not fit for everyone.

1.A.healthy B.abnormal C.normal D.lively

2.A.exposing B.applying C.adapting D.leading

3.A.tissues B.proteins C.chemicals D.cells

4.A.completely B.directly C.rapidly D.slowly

5.A.keeps B.comes C.stays D.loses

6.A.drawn off B.made out C.made up D.drawn away

7.A.Gradually B.Eventually C.Immediately D.Slowly

8.A.bodily B.mentally C.chemical D.surgical

9.A.as well B.as if C.as for D.as long as

10.A.last B.wrong C.first D.right