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举一反三
【单选题】Passage Two In 1997, devotees of home electronics eagerly awaited the DVD player, a new device that could play movies without videotape, and with greater clarity. It caught on even faste...
A.
die economic realities of its practicality
B.
robust economic growth
C.
economic problems of hi-tech companies
D.
ignorance of the technology
【单选题】制作面包需要面粉、糖和酵母等原料，有时还要加入淀粉酶。下列说法错误的是______。
A.
加入淀粉酶有利于酵母的发酵
B.
淀粉酶可用作提高过滤速度以及蔬菜加工、糖浆制造、葡萄糖等加工制造
C.
用沸水溶解淀粉酶会使其失活
D.
淀粉酶能够促进蛋白质的水解