激光经纬仪是在光学经纬仪上装置激光器，并通过望远镜发射激光束的仪器。( )
参考答案：对
If I try to correct someone, I have to do it with so much good humor and bright smile as if I were the one ______.
A．to have been corrected
B．correcting
C．having been corrected
D．being corrected
上述哪个方剂具有消食导滞，清热祛湿的功效（）
A.枳术丸
B.健脾丸
C.保和丸
D.枳实导滞丸
E.枳实消痞丸
