下列关于脊柱CT扫描技术的叙述，正确的是
A. 患者侧卧于检查床上
B. 颈椎和腰椎常规扫描正位定位像
C. 若是以观察椎体和椎旁组织为主，则扫描基线应平行于椎间盘
D. 若是以观察椎间盘为主，则扫描基线应平行相应的椎间隙
E. 腰椎间盘扫描常规扫描L1、L2、L3、L4四个椎间盘
在含水量和压力不变的前提下，天然气的绝对湿度随温度降低而增大。()
A cobra emerged from behind the rock.This frightened the girl into() .
A screming
B screamed
C scream
D to scream
In less than a year,he came to terms()his life and work there.
A on
B at
C in
D with
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