Mary can play the trumpet ______ she can't swim. [ ]
A. and
B. but
C. or
答案:B
《神华集团露天煤矿本质安全管理考核评分标准》中规定卡车作业时,()等安全装置必须完好可靠。
A.制动
B.转向
C.灯光
D.空调
乳痈气滞热壅证内治当选用:()
A.透脓散
B.五味消毒饮
C.仙方活命饮
D.三妙散
E.栝蒌牛蒡汤