毒蛇咬伤后，对创口扩创排毒，下列各项中错误的是（）
A. 扩创法常规消毒后，沿牙痕作纵行切口，长约1.5cm，深达皮下
B. 伤口作“十”切口
C. 血循毒蛇咬伤后，若伤口流血不止，且全身有出血现象者，则应立即扩创
D. 切口扩创时，如发现有毒牙遗留应取出，并用手由近心端向伤口附近反复挤压，以排出毒血
E. 血循毒蛇咬伤后，若伤口流血不止，且全身有出血现象者，则不应扩创
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在见光条件下接触空气不会形成过氧化物的试剂是( )。
A. 乙醚
B. 四氢呋喃
C. 液体石蜡
D. 甲苯
The city is______of three sections, which are separated by rivers.
A. upset
B. valued
C. composed
D. ventured
Hydrogen （）
A. is a widely-used fuel
B. is not yet in general use as a fuel
C. is not a particularly easy fuel to store
D. is a more economical fuel than wind energy
Alternative sources of energy （）
A. could not possibly reduce the installed capacity of conventional power stations
B. might not reduce the installed capacity of conventional power stations
C. would automatically reduce the installed capacity of conventional power stations
D. would make it necessary to reduce the installed capacity of conventional power stations
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