The information superhighway came into existence because of ______.
A. copper wire cables
B. satellite communication
C. optical fibers
D. laser and optical fibers
在二级银行体制下，M=( )。
A. 原始存款X货币乘数
B. 基础货币X货币乘数
C. 派生存款X原始存款
D. 基础货币X原始存款
The word "orator" originally meant speaker; but now it signifies the person who makes speech. This is an example of ______.
A. narrowing of meaning
B. widening of meaning
C. meaning shift
D. loss of meaning
CT示右额顶区有一直径0.5cm大小高密度阴影，最可能的是
A. 出血
B. 梗死
C. 肿瘤
D. 增生的颅骨
E. 骨折的碎片
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