艺术界闻名遐尔的[清明上河图]出自何人之手?
参考答案:
出自于张择端之手。
当朗伯-比尔定律用A=εbc表示时,b的单位用cm、c的单位用mol·L-1表示,ε称为______。
Even though I have been to her apartment several times before, I still don't remember ______ .
A.which building it is in
B.which the building is in
C.which is it in
D.which building is it in