温度每升高1℃,三极管的β将增大()。
A、0.5%~0.1%
B、0.5%~1%
C、1%~2%
D、0.05%~0.5%
参考答案:A
Using this kind of hybrid, farmers are producing harvests _____ before. [ ]
A. twice as many as
B. twice as large as
C. as twice large as
D. as twice many as
63岁,男性,既往有高血压病史数年,平时血压控制欠佳,活动后突然出现左侧偏瘫,右眼闭合不全,双眼向左凝视,迅速昏迷、高热、四肢瘫痪、双侧瞳孔缩小。应考虑的诊断是()。
A.脑叶出血
B.基底节区出血
C.脑桥出血
D.小脑出血
E.侧脑室出血