歌曲《在希望的田野上》的曲作者( );《难忘今宵》的曲作者()。
参考答案:施光南;王酩、刘炽、彭修文
Someone called me at midnight but hung up _____ I could answer it. [ ]
A. as
B. since
C. after
D. before
脑脊液常规化学检查包括( )
A.蛋白质
B.葡萄糖
C.酮体
D.氯化物
E.胆红素