在平面直角坐标系中。点P(-2,3)关于x轴的对称点在[ ]
A. 第一象限
B. 第二象限
C. 第三象限
D. 第四象限
答案:C
— Was it not until last week ______ he decided to give up smoking?
— No. He began _____ he saw the new film last month.
A.when; as soon as
B.that; directly
C.did; after
D.that; till
治疗阴虚火旺,肺肾阴虚所致盗汗,骨蒸潮热,心烦等证,首选药组是()
A.天花粉、沙参
B.石膏、知母
C.黄柏、知母
D.黄芩、地骨皮
E.牡丹皮、桑白皮