—Amanda, you look tired today. What's wrong?—I worked______ late ______ I didn't go to bed until midnight yesterday.
A:too; to
B:so; that
C:not only; but also
D:such; that
Ca(ClO)2与浓盐酸反应会生成Cl2,该反应的化学方程式为:
Ca(ClO)2+4HCl(浓)=CaCl2+2Cl2↑+2H2O