治疗行痹,应首选
A.乌头汤
B.薏苡仁汤
C.防风汤
D.宣痹汤
E.白虎加桂枝汤
参考答案:C
横跨深圳及香港之间的深圳湾大桥(ShenzhenBayBridge)是中国唯一倾斜的独塔单索面桥,大桥全长4 770米,这个数字用科学记数法表示为(保留两个有效数字)( )
A.47×102
B.4.7×103
C.4.8×103
D.5.0×103
She has been given three free tickets for tomorrow’s concert and she ______ there with two of her best friends.
A.has gone
B.is going
C.has been
D.went