儿科处方的颜色是
A.淡红色
B.淡黄色
C.淡绿色
D.淡蓝色
E.白色
参考答案:C
解析:各类型的处方应按规定格式印刷,普通处方用白色纸,儿科处方用淡绿色纸。
Do you know how long it is ______we last went to the theatre?[ ]
A. since
B. before
C. when
D. that