在使用水准仪进行水准测量时,进行瞄准时,要使十字丝清晰,转动()
A.制动螺旋
B.目镜调焦螺旋
C.物镜调焦螺旋
D.微动螺旋
参考答案:B
My parents asked me _____ letting off fireworks.
[ ]
A. not to be careful with
B. be careful with
C. careful with
D. to be careful with
痛势急胀,痛无止时,如同鸡啄,按之中软应指,为
A.气痛B.痰痛C.湿痛D.化脓痛E.瘀血痛