古书在刊刻当中误增的、字叫作()
A.衍
B.夺
C.错简
D.讹
E.倒
参考答案:A
Mobile phones are very popular nowadays and they are_______ than before.
A.cheap
B.cheaper
C.cheapest
D.the cheapest
以下哪一选项不是普萘洛尔引起的不良反应
A.房室传导阻滞B.心动过缓C.支气管哮喘D.高血压E.急性心力衰竭