第一台电子计算机于1946年诞生于（）。
A．英国
B．法国
C．德国
D．美国
参考答案：D
_______the competition in society is becoming fiercer and fiercer, more and more people
turn to ______ drugs to reduce their pressure. [ ]
A. With; taking
B. As; take
C. With; take
D. As; taking
金属与周围介质发生了电化学反应，在反应过程中有（）产生的腐蚀称为电化学腐蚀。
__the competition in society is becoming fiercer and fiercer, more and more people