可使黏膜着色的局部用药是
A．甲硝唑B．四环素C．氯己定含漱剂D．1%过氧化氢溶液E．羟氨苄西林
参考答案：C
— My car ________ twice this month.
— I'm sorry to hear that. [ ]
A. has been broken in
B. was broken in
C. has been broken into
D. was broken into
简述注意的双重加工理论。
