注射剂可分为（）。
A.注射液
B.注射用无菌粉末
C.注射用浓溶液
D.注射用胶溶液
E.以上都是
参考答案：A, B, C
When Rose walks __________ the toy shop, she often stops to look at the cute teddy bears __________ the window.
A．pass, across
B．past, across
C．pass, through
D．past, through
固体传热是以（）方式进行的。
A、辐射
B、传导
C、传递
D、对流
